Harmony stops working after 1 minute

I upgraded my Harmony 12 Premium from 12.1 to 12.2. The new version starts up, but stops working after about one minute. I tried to reinstall the old version, but the same problem occurs.

Hi,

Would it be possible to know a bit more about the issue. Are you doing a specific action or does it shut down at random?
What system are you using?

Thanks!

Marie-Eve