Big Backpack voiding tanks

Your GTNH Discord Username

star_tube

Your Pack Version

2.4.0

Your Server

Java Version

Java 8

Type of Server

Single Player

Your Expectation

When storing items in a backpack the items should be persistent

The Reality

When enough items are stored in the backpack they start disappearing on exiting the backpack. I was storing large quantities of full large stainless steal fluid cells (attached is the exact breakpoint for me. It ate my Ammonia I put in there as well as some empty fluid tanks I put in)

After reaching the breakpoint I could also dupe the items in the backpack prior to the breakpoint by removing them and closing the backpack. Upon opening the backpack the items were still in the backpack while also being in my inventory.

Your Proposal

Make it not? If I had to guess it's something to do with the way the contents of the backpacks are saved on closing such that excess items are deleted. If a solution that keeps the items in the backpack isn't an option then one that drops them at the players feet rather than deletes them would be preferable.

Final Checklist

[X] I have searched this issue tracker and there is nothing similar already. Posting on a closed issue saying the bug still exists will prompt us to investigate and reopen it once we confirm your report.
[ ] I can reproduce this problem consistently by follow the exact steps I described above, or this does not need reproducing, e.g. recipe loophole.
[ ] I have asked other people and they confirm they also have this problem by follow the exact steps I described above, or this does not need reproducing, e.g. recipe loophole.

GTNewHorizons / GT-New-Horizons-Modpack