Thunderbolt Display delayed startup
I have 2 thunderbolt displays that work perfectly on my Mac Pro 2013. When I connect them to my Mac Studio using the Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapters, the main screen boots up on startup, the 2nd screen can take up to 7 minutes to go from black screen to the extended screen. Time varies down to 4 minutes. If I do a restart, both screens startup together. This has happened intermittently since I set the new machine up.
VERY annoying.
I have tried disconnecting all cables and power plugs, waited 30+ seconds before starting - same thing.
I took my MacPro out of its case, connected screens etc, worked as they should.
Would really appreciate some help before I go to Apple Support - see attached below
Best Regards
Ron