Possible Fixes

Yes

Modpack Version

2.21

What happened?

I play this in single world.
I lost every thing in my backpack , so I try to check my backup data.
[world]/data/sophisticatedbackpacks.dat this file seems keeps everything in backpack, but it's file size is about 40m.
I try to restore this file , but this file size keep going larger, and my backpack data kept corrupt again.
1.I check no backpack gathering resource .
2.I delete sophisticatedbackpacks.dat, so my backpacks all empty.
3.I void all backpacks.
but nothing change, this data file increase size with no reason.

latest.log

No response

Developer reports

No response

Please run /sophisticatedbackpacks removeNonPlayer false and update modpack to latest version, this was already fixed.