I'm playing on the modpack McEternal version 1.3.6 (so Treasure2! version Treasure2-mc1.12.2-f14.23.5.2768-v1.12.0).

When opening the coin pouch with stacks of less than eight items, the number of item inside the slots double up to eight. I've tried it with silver and golden coins. It seems to double the charmed coins too, but I couldn't reproduce this bug.

I can confirm this is happening too.

Thank you!