Summary
When using an export bus and a fuzzy card the game crashes when set to split at 99% mode.
using version 8.2.0 with recommended forge version for 1.16.4.

To Reproduce
Use an export bus with a fuzzy card set to export some armor piece.
Set fuzzy mode to split at 99%.

Additional context
Crash report included

Environment
Tested on fresh install of forge with no other mods.
crash-2021-02-26_14.41.53-server.txt

Duplicate of #4821