For feature requests, just erase this template and clearly describe the feature you'd like to see

Minecraft Version

1.12.2

Forge Version

14.23.2.2615

Mod Version

0.5.1-163

Describe your problem, including steps to reproduce it

https://gyazo.com/f9605f40927765f4977005ea657a3c72
Slots are still "Active" even when no trade is there

Any other comments?

Confirmed, although this can be considered a minor cosmetic bug.