Testing Windows migration to the latest Linux version. We use Message Sniffer. 

All messages are being sent to the Proc folder. The "Enable Spool Proc" setting is disabled. The header file with each message contains "Written" and not "Failed". There are no error messages in the Logs, and the service is loading without any errors.

Could this be a licensing issue with Message Sniffer running on two machines? SM Support says the license will work in two environments for 30 days.

Any ideas?