We have this strange bug here with Devuan ASCII where the IMAGE of the Lock Screen XScreenSaver pops up and steals the whole screen during work. It does not happen all the time, but once in a while where it goes on for some time.

If writing a document the letters appears making a sentence line in the Lock Screen image. We remove it by pressing show desktop twice (to get back to the app), but it comes back within a short time. Quite annoying.

Does anyone know whats going on?

Thanks,
Monti