If you found this thread, here you have an important info for mod making:
Always make backups of your mods in case of sudden corruption
Don't downgrade your mcreator, you could corrupt your workspace(this counts also for downgrading to use a specific plugin, which is only for specific versions)
You can export procedures, textures - it is helpful if you plan a redo or reusing of those things
If you found this thread, here you have an important info for mod making: