Incompatibility with JEI's GUI in cheat mode

[LeStegii]

Describe the bug
The GUI of the Crafting Chip is incompatible with JEI's Cheat Mode. If you click outside of the main GUI in order to set the recipe in the matrix, it will delete the items instead.

To Reproduce
Steps to reproduce the behavior:

1. Enable the JEI cheat mode.
2. Rightclick holding a ProjectRed Item Crafting Chip.
3. Try to create a new recipe using the Matrix (click on the button on the right).
4. If you click items somewhere outside of the main GUI (parts of the Matrix GUI are larger than the main one), the item will be deleted as JEI thinks you throw it away.

Expected behavior
The items should be put into the matrix.

Crash Log
None.

Versions
These mods are included in the Tekkit II modpack.

• CCL Version: 1.12.2-3.2.3.358
• FMP Version: 1.12.2-2.6.2.83
• MrTJPCore Version: 1.12.2-2.1.4.43
• ProjectRed Version: 1.12.2-4.9.4.120

Screenshots/Videos
If applicable, add screenshots or video links to help explain your problem.

• Red: deletes item (outside of main GUI)
• Green: doesn't delete item

[LeStegii]

Already reported it to the modpack creator, but I think this is either ProjectRed's or JEI's issue (most likely ProjectRed as it works with other mods).
xJon/Tekkit-2#110

[Pirulax]

Specifically the issue is present when "cheat mode" is enabled, because then right-clicks are supposed to clear the item you have on your mouse.
With cheat mode disabled in JEI it works as expected.
Sorry, I forgot what I read in the title.