I updated my mod from 2020.2 (1.14.4) to 2020.3 (1.15.2) and my custom recipes that alter vanilla stop working. For example, my mod have recipes that changes stone tools recipe, replacing cobblestone to stone. Now this recipes stop working and only normal recipe works.There is workspace: https://drive.google.com/open?id=1jZEyb2rlmFL37oEnELFrzVHnvwITilyZ . Sorry for my English if something not clear.
Issue comments
I think I found the problem. Forge adds some recipe overrides to and your overrides get overridden by forge overrides.
Seems sorting is quite unpredictable and based on the modid so you might have to try some modids to find the right one.
I made another workspace and tested this (only added one recipe override) in it and the recipe was overriden.
and
These two recipes refer to unknown elements. Unknown items break crafting system.
I suggest fixing or removing these recipes.
If they no longer exits, remove them manually from the recipes folder.