[pre210_mc1.21.1] Crash by moving child structure that's highlighted

[DraGonFiirE]

Crash by messing around in the Moving Structures window
Can unfortunately not reproduce it

crash-2026-02-27_22.01.30-client.txt
debug-1.log

Neoforge - 21.1.217
CreativeCore_NEOFORGE_v2.13.34_mc1.21.1
LittleTiles_BETA_v1.6.0-pre210_mc1.21.1

[DraGonFiirE]

After further testing Im able to reproduce the issue
Crash by moving child structure that's highlighted
Seems to be only happening if there are more child structures than one, works fine with just one child structure

crash.mp4

Blueprint:

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[CreativeMD]

Fixed in the newest version. Thanks a lot for reporting this issue!