Primarily tested on modpack NotTooComplicated2:

There's a weird bug that occurs when chemlib and industrial foregoing are in the same pack.
I've tested it by removing chemlib and it seems to fix the issue.

The issue is upon first server or client load in a world the recipes for IF work. But then when you save and go back to main menu and relog all the recipes dont show in JEI anymore at all. Again, upon removing chemlib it works.

chemlib-1.16.5-2.jar

industrial-foregoing-1.16.5-3.2.14.6-14.jar

Forge-36.2.21

Hello, as these mods are being rewritten entirely, older bugs you have run into will not be present in the newer version. To be sure, there will be new bugs, but I'm not fixing older bugs for the pre-rewrite versions. So I'm going to close this. Keep an eye out for new releases.