Topic category: Troubleshooting, bugs, and solutions
I decided to make a forge mod in MCreator 2020.5 for 1.15.2 (I also tried on the newest snapshot of Mcreator and it happens anyway), a mod that adds a new block, when you right click on it, it runs a procedure, that generates a big structure made of many different pieces(like village, mansion or mineshaft, that are genereting piece by piece), part of it differs depending on the biome, where block was right-clicked. At some point I started seeing this instead of my procedure in blockly editor:
But it renders properly in the "edit code" mode:
And when I run minecraft with this mod and try to right click on the block it executes the procedure properly. The only problem is with how it looks in blockly editor.