I'm currently trialling a Horizon 2012 RDSH deployment on Windows Server 2019 hosts and so far almost everything has been going great - so much simpler and far fewer issues than using native Windows Remote Desktop. The last challenge seems to be with display scaling on Windows 10 Horizon 2012 clients.
For testing just now I have my laptop (1920x1080) connected to a 4k monitor as a second display, as some of our users have. The primary display (laptop) is set to 100% scaling and the second monitor (4k monitor) is set to 200%. However, when connecting in multi-monitor the second display is not scaled on the client side, so everything appears tiny. The same appears to happen if the client is opened single screen and moved to the other monitor, scaling is not updated as it seems to be if using Windows native Remote Desktop client.
Is there something I've missed in configuration somewhere to have display scaling work correctly?
--Richard A.