Adobe Rush no rendiring - Programm stops working.

Hello, i have the same problem. On two different PC Computers, Windows 10.
After starting the export, it works for a few seconds ... then  it stops.
I can stop the rendering by click on the button, it switches back.
But then i cannont end the program - mostly Rush freezes and windows asked me to wait or stop the task manually.

Also switched the hardware acceleration off and on, deleted cache and started several times.
This is the situation on a very new pc with intel I5 chip, 500GB SSD and 16GB Ram ... all the rest of different programms, also Adobe, are runing fine. No known issues with any other program.

But - my older pc, already working, a Dell All in One model, has the same problem. Identical situation. A short period ago, i was able to render some videos ...

So i think, it is a basic issue with the current version of Rush?
My workaround is to use my MacBokk - there it works fine.

Thanks for your support,