Exception.ToString() doesn't usually give you the full picture. I usually recursively access the InnerException property and on each Exception level write down the exception type, message and stacktrace.

What material do you use? For me personally, putting printer to enclosure was game changer, I have much better prints since then. I used to have layers separation and prints not sticking to the bed sometimes. This doesn't apply to PLA though. PLA doesn't like the heat that much.

I've got myself a Prusa MK3S a year ago. It's quite popular and affordable printer. I'm using it more often than I thought I will and it quickly became a hobby. Really nice hobby. :)

Have you tried to display this FixedPage in UI to see whether the problem actually is in the FixedPage, or in your custom WPF control runtime?

Hi Jakob, I had experience with this in the past, but visual changes between two OS versions were usually minor. What do you mean by "completely changed layout"? Can you please elaborate? As you pointed out, issue is (probably) about the styles and templates. By manually setting the whole style (with template etc.), you should be able to ensure same visual appearance on any (compatible) OS.