Issue description:

Clicking Expand button when you have something selected in a Filter Module crashes the client. I'm not sure if it's any item, or just some.

Steps to reproduce:

1. Open Filter Module window via rightclick into empty air.
   2a. Add an item to the module (if it's empty).
   2b. Select an item.
2. Click Expand button.
3. Game crash! (Not server, just client.)

Versions:

• Minecraft: 1.16.3
• Forge: 34.1.1
• CompatLayer (only if on Minecraft 1.10 or 1.11):
• McJtyLib: 5.0.9
• RFToolsBase: 2.0.5

Possibly incompatible mods and versions:

I don't think I have any of those, but for reference, the pack is the All the Mods 6 preview build (waiting on Mekanism for a release). Here's a list of the mods in the pack, if it helps. https://pastebin.com/Q9BFNiqG

Relevant logs, if any:
https://paste.ee/p/yAKca#s=0