GregTech CEu Version

fabric-1.20.1-1.0.10-build_132

Recipe Viewer Installed

EMI

Environment

Singleplayer

Cross-Mod Interaction

Unsure

Expected Behavior

In vanilla GUI: hovering over a slot and pressing horbar/offhand hotkey (default 1~9 and f) will swap the items in them.

Actual Behavior

In GT machine GUI: hovering over a slot and pressing horbar/offhand hotkey has no effect.

Steps to Reproduce

1. Put an item in your inventory.
2. Place a low pressure steam alloy smelter.
3. Open its GUI.
4. Hover over the slot that has item.
5. Press horbar/offhand hotkey.
6. Nothing happened.

Additional Information

Can't swap the two slots.

Possibly related:
Can't use the pick block button in creative mode, as long as any GT inventory is opened.