[BUG] Illegal Stack Size (3)

[MrLarkyy]

I just updated SF and all addons to latest stable versions and when I just took a look into our console, there was this warning.

• Server Software (Spigot/Paper):
• Minecraft version: 1.16.5
• CS-CoreLib version:
• Slimefun version:
• LiteXpansion version:

[J3fftw1]

duplicate also you didnt fill in the bug report