As the title says. This time, I managed to organize the log into a single file. There is both the client log and the server log (which is localhost). In this specific log, EMI did not load even after 20 minutes. I mention this because sometimes it still shows me the message "EMI experienced a critical exception...", but it still loads afterwards.

Client log: https://mclo.gs/WImpRUk

Server log: https://mclo.gs/opOkag4 (sending this because I don't know if it might be useful. The times don't match because the server has been open for some time).

I believe this is due to either a self mutating item, or a bug in Nature's Aura which throws exceptions in its JEI subtype interpreter, please report this to Nature's Aura.

This issue seems to be on EMIs side, as the subtype handling code assumes there's a subtype with no NBT data to set as a default comparison. This works for most items, but not for Nature's Aura ItemEffectPowder, as all subtypes have some NBT to mark which specific type they are.