TC Studio Konnekt 48 - no sound :(

Everytime, after rendering a project in Cubase 9.5 my audio interface stops to work (no sound)
Here my setup:

Computer: MacPro (mid 2012)
MacOS: High Sierra 10.13.6
Audio Interface: TC Studiokonnekt 48 (3.6.1f34)

I've already contacted Steinberg but they said that the audio interface needs an update where the whole tc electronic community is waiting for years now...

BTW a simple on and off resolves the problem but it's very annoying after a while

Hope someone has some other news, tips or maybe a workaround?

Thanks