Ableton 11.2 and studiomux

I‘ve the following problem: Win 10 is the System. I‘ve downloaded the win server, and i‘ve an Ipad with the newest version of studiomux.
I started ableton and i loaded the vst studiomux plugin, I‘ve connected my Ipad Pro 2020 with an USB C cable to the PC and studiomux app is started, too.
When I opened the vst plug in, I can connect my Ipad in the GUI, but when I am connecting the channel of my Ipad (a drummachine app is started on a studiomux channel )the DAW chrashes (In Cubase the same). I’ve the newest Itunes App on my PC. What Iam doing wrong?