Hello!
Hope You can help me.
I installed Carpet mod (fabric-carpet-1.20.5-1.4.140+v240423) in a fabric multiplayer server (0.15.10) for Minecraft 1.20.5.
Everytime i pick-up a block mined with pickaxe, shovel etc. it goes directly in the inventory and the blocks stacks in groups of two inside the inventory. See photo. I don't have any other mods installed.
Thanks for your help!

I think I found the issue, it's this check in script: && current:2 == item_nbt due item_nbt also including counts now for example: {count:1,id:"minecraft:stone"} this only matches once with the inventory slot and then never again. So workaround fix is to just change this condition to read like this: && current:2~'id' == item_nbt~'id' which only compares the id inside the nbt.

That shouldn't happen if you don't have other mods installed, what rules do you have enabled, and do you have any scarpet apps/scripts?

That shouldn't happen if you don't have other mods installed, what rules do you have enabled, and do you have any scarpet apps/scripts?

No, i tried it without any other mods, script etc.,
I am using the experimental features.