It’s taken a few attempts to try and work this one out. Currently I cannot run a mastering session in WL10, so it’s back to WL9.5.
A fresh boot (Win10-64) and Cubase works fine with the ASIO driver (UA apollo FW). So does WL9.5.
However, if I start WL10 it seems to be problematic initialising the ASIO driver, as hitting Play does nothing. The correct audio settings are selected in Preferences, however nothing happens when Play is pressed. Then if I exit WL10 and try WL9.5 then same happens. It no longer works. And neither does Cubase. I have to perform a complete reboot to be able to use Cubase and WL9.5 again.
Originally I reported really slow laggy graphics with WL10 when playing, however it seems to have got to the point where it won’t even play any more. Originally it appeared that Ozone 9 was the problem as it consumed lots of resources according to the resource meter on WL10, however the machine is not using more than 25% of the system resources when this happens and the same session runs fine in WL9.5. Cubase has way more plugins in use and runs smoothly.
So I suspect that WL10 is misbehaving with the UA ASIO driver. Hopefully a fix can be found. Until then, it’s not usable.