In Optifine 1.16.5 G7 this issue did not exist and it was today (the date this was created) that I upgraded to G8 and I noticed an issue with the item render with the JEI items, their lighting was messed up for some reason

I went to my shaderpacks discord (Using Complimentry; a fork of BSL) and had a chat, I asked around and found that this issue can be potentaly be fixed by Optifine, and/or You guys. How IDK but I bet the kind folks on the Complimentery Discord will be able explain what might be happening and how to fix it

the shaders are great and it would be a shame that I had to disable them over a small issue as this.

A fix would be nice because I cant imagine not having this mod in the mix of things

as a final side note, I want to thank the mad lads that made this mod possible and being such a useful asset to the community

Screenshot of the issue

Relatively same snapshot but it running Optifine HD 1.16.5 G7 instead of G8 like in the one above

Thanks for the report!
JEI is just rendering items, unfortunately rendering issues like this happen occasionally and it is up to Optifine to fix.

this issue has been confimed as well for others as it can be found via this report link

sp614x/optifine#5687

Additional Notes:

Forge version: 36.2.8 (lattest as of this time)

Mods present: will provide if needed; Optifine and this mod are present naturally since this report is based on the 2

REMEMBER: this issue is only present in G8, you will not be able to reproduce this issue if your using G7 Optifine