An interesting thing is that when the PC is re-booted the project starts up ok. It is just when the project is re-launched via project.load() there is an issue.
(In both situations RDC is not connected)
Every time I’ve had this issue a restart of the computer fixes it. not ideal but has only happened twice. ( both since updating to 2021.12380 ) first time was straight after updating TD second time after updating Windows.
The TD version for this project is a bit old. 2020.25380 I wonder if updating the project/TD version will help. Thoughts?