During my trial the core was running on a Win 10 machine and I didn’t have the issue. After I switched over to Rock running on a Nuc the issue started happening just as @xxx reported . Sounds like a clue. 
During my trial the core was running on a Win 10 machine and I didn’t have the issue. After I switched over to Rock running on a Nuc the issue started happening just as @xxx reported . Sounds like a clue.