Modpack version
1.77

Issue
When I mine redstone or throw it onto the ground, it takes a few seconds for the items to enter my inventory, I thought it was AE2 in-world crafting but considering I is also when I mine it, I'm not sure if it can be that.

Thank you for the report, I will investigate the issue.

Can confirm, it happens to me too. This only affects redstone dust, weirdly enough.

Any update on this? Happening to me too with console spamming Fetching addPacket for removed entity.

Not yet nope.

I do not believe I can fix this, and the majority of modders no longer support 1.12, so I'll close this issue.

Nethertheless, thank you for reporting :)

Nice lead, thanks!

If I had to guess, I'd say it's Wizardry causing this. It modifies redstone to not burn in fire.