Some moved/renamed/deleted files are not detected

[alexalouit]

Using last Bsync on two similar Ubuntu 16.04.5 LTS, underlying filesystem is Btrfs.

$ bsync /dir -i -v -b user@hostname:/dir
Loading filelists...
Loading original filelist from snap files...
Loading .bsync-snap-20210708181831.750984...
Loading dir1 filelist...
Loading dir2 filelist...
Analysing original paths...
Analysing remaining new paths in dir1...
Analysing remaining new paths in dir2...

(LEFT DIR CONTENT)                                                                                                                                         (RIGHT DIR CONTENT)                                                                                                                                   (ACTION)

mailbox/username/Maildir/cur/1625768344.H43283P9597.xxxxxx:2,Tbcj                                                       -->                                                                                                                                                        (copy)
mailbox/username/Maildir/cur/1625768373.M569836P4621.xxxxxx:2,aci                         -->                                                                                                                                                        (copy)
mailbox/username/Maildir/cur/1625768373.M569837P4621.xxxxxx:2,Tbcj                        -->                                                                                                                                                        (copy)
mailbox/username/Maildir/cur/1625768373.M569838P4621.xxxxxx:2,Tbcj                        -->                                                                                                                                                        (copy)
mailbox/username/Maildir/cur/1625768373.M569839P4621.xxxxxx:2,Tbcj                        -->                                                                                                                                                        (copy)
mailbox/username/Maildir/cur/1625768373.M569840P4621.xxxxxx:2,Tbcj                        -->                                                                                                                                                        (copy)
mailbox/username/Maildir/cur/1625768373.M569841P4621.xxxxxx:2,Tbcj                        -->                                                                                                                                                        (copy)
mailbox/username/Maildir/cur/1625768375.H897729P9502.xxxxxx:2,Tbcj                                                      -->                                                                                                                                                        (copy)
mailbox/username/Maildir/cur/1625765442.H606313P9101.xxxxxx:2,                                                          <--                                                                                                                                                        (rm)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625765172.H923861P9051.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625765428.H151405P9093.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625765442.H606313P9101.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625765772.H980977P9169.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625765965.H849086P9202.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625766466.H954726P9290.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625767067.H976495P9394.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625767849.H415399P9524.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625768344.H43283P9597.xxxxxx                                                              (copy)

Todo in /dir: rm:1 cp:9
Todo in user@hostname:/dir: cp:8

Applying actions...
Applying actions in dir2...
rsync: mailbox/username/Maildir/cur/1625768344.H43283P9597.xxxxxx:2,Tbcj
rsync: mailbox/username/Maildir/cur/1625768373.M569836P4621.xxxxxx:2,aci
rsync: mailbox/username/Maildir/cur/1625768373.M569837P4621.xxxxxx:2,Tbcj
rsync: mailbox/username/Maildir/cur/1625768373.M569838P4621.xxxxxx:2,Tbcj
rsync: mailbox/username/Maildir/cur/1625768373.M569839P4621.xxxxxx:2,Tbcj
rsync: mailbox/username/Maildir/cur/1625768373.M569840P4621.xxxxxx:2,Tbcj
rsync: mailbox/username/Maildir/cur/1625768373.M569841P4621.xxxxxx:2,Tbcj
rsync: mailbox/username/Maildir/cur/1625768375.H897729P9502.xxxxxx:2,Tbcj
Applying actions in dir1...
rsync: mailbox/username/Maildir/new/1625765172.H923861P9051.xxxxxx
rsync: mailbox/username/Maildir/new/1625765428.H151405P9093.xxxxxx
rsync: mailbox/username/Maildir/new/1625765442.H606313P9101.xxxxxx
rsync: mailbox/username/Maildir/new/1625765772.H980977P9169.xxxxxx
rsync: mailbox/username/Maildir/new/1625765965.H849086P9202.xxxxxx
rsync: mailbox/username/Maildir/new/1625766466.H954726P9290.xxxxxx
rsync: mailbox/username/Maildir/new/1625767067.H976495P9394.xxxxxx
rsync: mailbox/username/Maildir/new/1625767849.H415399P9524.xxxxxx
rsync: mailbox/username/Maildir/new/1625768344.H43283P9597.xxxxxx
Updating filelists...
Updating snap files: .bsync-snap-20210708182009.368791...
Done!
Cleaning SSH master...

Few seconds after:

$ bsync /dir -i -v -b user@hostname:/dir
Loading filelists...
Loading original filelist from snap files...
Loading .bsync-snap-20210708182009.368791...
Loading dir1 filelist...
Loading dir2 filelist...
Analysing original paths...
Analysing remaining new paths in dir1...
Analysing remaining new paths in dir2...

(LEFT DIR CONTENT)                                                                                                                                         (RIGHT DIR CONTENT)                                                                                                                                   (ACTION)

mailbox/username/Maildir/cur/1625768409.M755002P4621.xxxxxx:2,aci                         -->                                                                                                                                                        (copy)
mailbox/username/Maildir/cur/1625768409.M755003P4621.xxxxxx:2,Tbcj                        -->                                                                                                                                                        (copy)
mailbox/username/Maildir/cur/1625768409.M755004P4621.xxxxxx:2,Tbcj                        -->                                                                                                                                                        (copy)
mailbox/username/Maildir/cur/1625768409.M755005P4621.xxxxxx:2,Tbcj                        -->                                                                                                                                                        (copy)
mailbox/username/Maildir/cur/1625768409.M755006P4621.xxxxxx:2,Tbcj                        -->                                                                                                                                                        (copy)
mailbox/username/Maildir/cur/1625768409.M755007P4621.xxxxxx:2,Tbcj                        -->                                                                                                                                                        (copy)
mailbox/username/Maildir/cur/1625768409.M755008P4621.xxxxxx:2,Tbcj                        -->                                                                                                                                                        (copy)
mailbox/username/Maildir/cur/1625765442.H606313P9101.xxxxxx:2,                                                          <--                                                                                                                                                        (rm)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625765172.H923861P9051.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625765428.H151405P9093.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625765442.H606313P9101.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625765772.H980977P9169.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625765965.H849086P9202.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625766466.H954726P9290.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625767067.H976495P9394.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625767849.H415399P9524.xxxxxx                                                             (copy)
                                                                                                                                                      <--  mailbox/username/Maildir/new/1625768344.H43283P9597.xxxxxx                                                              (copy)

Todo in /dir: rm:1 cp:9
Todo in user@hostname:/dir: cp:7

Applying actions...
Applying actions in dir2...
rsync: mailbox/username/Maildir/cur/1625768409.M755002P4621.xxxxxx:2,aci
rsync: mailbox/username/Maildir/cur/1625768409.M755003P4621.xxxxxx:2,Tbcj
rsync: mailbox/username/Maildir/cur/1625768409.M755004P4621.xxxxxx:2,Tbcj
rsync: mailbox/username/Maildir/cur/1625768409.M755005P4621.xxxxxx:2,Tbcj
rsync: mailbox/username/Maildir/cur/1625768409.M755006P4621.xxxxxx:2,Tbcj
rsync: mailbox/username/Maildir/cur/1625768409.M755007P4621.xxxxxx:2,Tbcj
rsync: mailbox/username/Maildir/cur/1625768409.M755008P4621.xxxxxx:2,Tbcj
Applying actions in dir1...
rsync: mailbox/username/Maildir/new/1625765172.H923861P9051.xxxxxx
rsync: mailbox/username/Maildir/new/1625765428.H151405P9093.xxxxxx
rsync: mailbox/username/Maildir/new/1625765442.H606313P9101.xxxxxx
rsync: mailbox/username/Maildir/new/1625765772.H980977P9169.xxxxxx
rsync: mailbox/username/Maildir/new/1625765965.H849086P9202.xxxxxx
rsync: mailbox/username/Maildir/new/1625766466.H954726P9290.xxxxxx
rsync: mailbox/username/Maildir/new/1625767067.H976495P9394.xxxxxx
rsync: mailbox/username/Maildir/new/1625767849.H415399P9524.xxxxxx
rsync: mailbox/username/Maildir/new/1625768344.H43283P9597.xxxxxx
Updating filelists...
Updating snap files: .bsync-snap-20210708182100.993313...
Done!
Cleaning SSH master...

1625765442.H606313P9101.xxxxxx was remove or move from dir1 between each sync.

Any idea of what's going on?

[alexalouit]

after some test, problem occur when file is move and rename.
changed: directory, filename, ctime
unchanged: size, inode, perms, uid, gid, mtime, atime