Appreciate that, Kershinator
2 server setup is ridiculous, but I do understand why you went that route.
Ultimately we found that if QBFC install is 32-bit it needs to be removed. Replaced with 64-bit by doing a program repair (22 or 23).
Then ran ToolHub options under Program Problems tab. Then rebooted.
Successfully hosting 32 & 64-bit DbMgr's now and able to swap to multi-user mode without issues in both.
