Modpack version
0.4.13
Describe the bug
You can use danks to duplicate stackable items indefinitely by placing two of an item in a dank and clogging up your inventory
then ctrl right clicking the item you want to duplicate that is inside the dank

Everytime you use xp you have to keep insightful crystal on your hand while doing it and after spending your xp QUICKLY
shift right click with the insightful crystal

Great!
also about #1938, i didnt really know about that issue being reported so i included both, thanks for the response!

Thanks for the report, I'll investigate :)

Part 2 is a duplicate of #1938

Hmm seems to be an issue with whatever adds ctrl+click functionalities for us. Perhaps Inventory Essentials.

It is indeed Inventory Essentials. I have disabled it's ctrl-click functionality to fix this, and #1864