Merchant Tab and cluster jewels

Currently I repeatedly get the bug that I cannot place cluster jewels into an existing merchant tab I sol cluster jewels from.


How to recreate (not 100% sure)
1. Have an existing tab with cluster jewels.
2. Sell a cluster jewel (someone buys it from that merchant tab)
3. Be online while it happens, your stash might bug out now.

Swapping zones doesnt help, logging off for 5min does.