I tried again today, once I find a problem. When you read the profile. Try not to read in a same folder.
It means account A read the DB (A) folder & DB (A) profile, account B read the DB (B) folder & DB (B) profile. It seem to be solve.
I have been running DB for 2 accounts too and got the problem what you say.
Firstly, copy a new DB folder for second account.
Second, use same char such as both WD, Barb, Monk.
hope my suggest can solve your problem