OK I found the issue. The slave was connected to the master from a Windows Service, which does not have the rights to create the DX11 swap chain.
When connecting using the JLNP file, it does work 
I’ll have a look at the warnings regexp tomorrow
OK I found the issue. The slave was connected to the master from a Windows Service, which does not have the rights to create the DX11 swap chain.
When connecting using the JLNP file, it does work
I’ll have a look at the warnings regexp tomorrow