Thanks for the explanation! Indeed sounds like a horribly complex thing...
Ah, I'll give it a try then.I mostly run only the capture part, doing the initial setup manually, and go to bed once things run fine. Clouds are usually not an issue here at 2400m.

But last night it would have been helpful, as guiding aborted after the MF. Still have to find out what happened, as PHD2 was happily guiding, but EKOS had it showing idle mode, I needed to manually "start" guiding again... It's the first time I saw it, so it might have to do with the way I started things (I had killed kstars, which left INDI on the remote compute running without disconnecting, so that when restarting kstars and ekos it would have all devices connected and running. Likely PHD2 didn't like that.... But that's in doubt another thread; sort-of hijacking this one once is enough
Thanks again!

I think I could fix for the problem. It would be great if you could test it. It is available as branch bugfix_mf_overwrite_frame on my kstars clone: invent.kde.org/wreissenberger/kstars.git

If you need support how to download and compile it, feel free to send me a PN.