GUI crashes when shift left clicking on empty slot

Upvotes: 0
Issue description

I've created a GUI, shift left clicking on items works fine, and plain left clicking works too, but whenever I shift left click on an empty slot the game crashes (shutting internal server, game closes). I tried creating a new workspace, I created a block with inventory, a default GUI (only with inherited from block inventory) and a procedure to open the GUI right clicking the block. Still, no luck, it kept crashing. 

I've sent the workspace, the crash report and mcreator's console log. And if it's not a bug I'd really like to know how to solve it.

 

Attachment Size
The workspace I created with everything on default.2.67 KB 2.67 KB
Minecraft's crash report3.65 KB 3.65 KB
MCreator's console log7.48 KB 7.48 KB

Issue comments

I can confirm this bug. Thank you for the bug report.

We will do our best to fix this bug as soon as possible.

This bug will be fixed in MCreator 1.8.0. Thank you for the bug report.

Shift right clicking caused the same bug and this was fixed too.