I crafted a fire element holder, and died because an evoker decided to spawn next to my fire node. Upon regathering my items, I found that my fire element holder was nowhere to be found!
I tested this again in a world with cheats enabled by /giving myself the holder then dying, and found that it dissapeared again!

It gets worse. This happens even if the holder has soulbinding. It doesn't stay with you, it still gets yeeted from existence.

This issue is likely with the old Soulbinding/Quark incompatibility. That issue has since been fixed, but I will see if this still occurs in the most recent version.