when the network suddenly disconnects and then reconnects, the upload progress becomes abnormal.

[Mengzhihong]

Describe the bug
During the file upload process, when the network suddenly disconnects and then reconnects, the upload progress becomes abnormal. The progress unexpectedly drops slightly below the previous value, then decreases further, and finally slowly recovers. This behavior can be clearly seen in the screenshot: 0.199 → 0.162 → 0.088 → 0.091.

To Reproduce
Steps to reproduce the behavior:

1. upload file
2. disconnect network
3. reconnect network

Expected behavior
continues inscrement progress

Screenshots

Smartphone (please complete the following information):

• Device: ipad pro 11 inch (m4)
• OS: ipadOS 26.2.1
• Version [e.g. 22] 1.31.0

Additional context
["2026-03-09 07:56:30 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, local -> file:///private/var/mobile/Containers/Data/Application/409F5AB2-69BD-4B56-BACA-E7AF9E2820D0/tmp/239458bc-f1a3-4268-ab69-4971e91669dc.zip"]
["2026-03-09 07:56:32 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.00798442120465622"]
["2026-03-09 07:56:32 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.01596884240931244"]
["2026-03-09 07:56:32 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.02395326361396866"]
["2026-03-09 07:56:32 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.0399221060232811"]
["2026-03-09 07:56:32 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.0399221060232811"]
["2026-03-09 07:56:33 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.043914316625609205"]
["2026-03-09 07:56:33 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.04790652722793732"]
["2026-03-09 07:56:33 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.051898737830265426"]
["2026-03-09 07:56:33 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.05589094843259354"]
["2026-03-09 07:56:33 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.05988315903492165"]
["2026-03-09 07:56:33 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.06387536963724975"]
["2026-03-09 07:56:34 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.06786758023957787"]
["2026-03-09 07:56:34 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.07585200144423408"]
["2026-03-09 07:56:34 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.07585200144423408"]
["2026-03-09 07:56:34 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.0798442120465622"]
["2026-03-09 07:56:34 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.08383642264889031"]
["2026-03-09 07:56:34 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.08782863325121841"]
["2026-03-09 07:56:34 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.09182084385354652"]
["2026-03-09 07:56:34 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.09581305445587464"]
["2026-03-09 07:56:34 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.09980526505820274"]
["2026-03-09 07:56:34 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.10379747566053085"]
["2026-03-09 07:56:34 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.10778968626285897"]
["2026-03-09 07:56:34 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.11178189686518708"]
["2026-03-09 07:56:34 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.11577410746751518"]
["2026-03-09 07:56:34 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.1197663180698433"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.12375852867217141"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.1277507392744995"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.13174294987682764"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.13573516047915574"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.13972737108148384"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.14371958168381196"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.14771179228614006"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.15170400288846816"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.1556962134907963"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.1636806346954525"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.1636806346954525"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.16767284529778062"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.17166505590010872"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.17964947710476495"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.17964947710476495"]
["2026-03-09 07:56:35 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.18364168770709305"]
["2026-03-09 07:56:36 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.18763389830942115"]
["2026-03-09 07:56:36 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.19162610891174928"]
["2026-03-09 07:56:36 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.19561831951407738"]
["2026-03-09 07:56:36 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.19961053011640548"]
["2026-03-09 07:56:42 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.16268258204487046"]
["2026-03-09 07:56:42 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.08882668590180044"]
["2026-03-09 07:56:42 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.08882668590180044"]
["2026-03-09 07:56:42 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.09182084385354652"]
["2026-03-09 07:56:43 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.09581305445587464"]
["2026-03-09 07:56:43 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.09880721240762072"]
["2026-03-09 07:56:43 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.10978579156402302"]
["2026-03-09 07:56:43 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.11377800216635113"]
["2026-03-09 07:56:43 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.13274100252740964"]
["2026-03-09 07:56:43 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.14471763433439397"]
["2026-03-09 07:56:43 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.14671373963555803"]
["2026-03-09 07:56:43 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.16467868734603452"]
["2026-03-09 07:56:43 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.16567673999661656"]
["2026-03-09 07:56:44 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.1666747926471986"]
["2026-03-09 07:56:44 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.16767284529778062"]
["2026-03-09 07:56:44 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.16867089794836265"]
["2026-03-09 07:56:44 +0000 - upload key = 239458bc-f1a3-4268-ab69-4971e91669dc.zip, progress = 0.16966895059894466"]