editing HeavySieve.json with new entries then doing "/excompressum reload" does not cause sieve rewards in JEI/NEI to update however the effects do update and work ingame. New entries also do not appear if added in.
Edit
forgot to mention that reloading works, but can take a long time when working with large packs hence why this is an issue

i have a problem where i cant get any rewards from auto sieves. sieves themselves just repeat the block. what happens is the block gets to the bottom and just teleports to the sieve top and repeats getting sieved for infinity with no reward.

btw, should i make a new thread for this issue?

i just am unsure what to do of it.

Runtime reloading is no longer supported by JEI, I don't think there's anything I can do to make it update.