I've assigned Toggling of Screen Mirroring to my Touch Bar (to switch between extended desktop and mirroring), but when I change over to mirroring the the TV I am connected to displays the wrong aspect ratio (black bars on the sides).
Checking the System Preferences I can fix this in the Display Settings by changing the "Optimise for" setting to my TV than the Retina Screen of my MacBook, however the next time I change it forgets this option.
I wondered if anyone might have a work around?
Currently running 3.370 of BTT (checked for new Alphas, and no update required)
MacOS Catalina 10.15.4 (19E287)
MacBook Pro (13-inch, 2018, Four Thunderbolt 3 Ports), 2.3 GHz Quad-Core Intel Core i5, Intel Iris Plus Graphics 655 1536 MB
MacBook Pro ---> USB-C to Thunderbolt 2 Dongle ---> Thunderbolt 2 Optical Cable ---> Elgato Thunderbolt 2 Dock ---> HDMI ---> Samsung TV