Hi squiresque!
The issue is pretty weird. Keep in mind that KOReader relies on the system to trigger a full epd update each few pages (using
https://github.com/koreader/android-...ler.kt#L33-L34)
Of course that particular call can be changed by Boyue when they want, but then the problem would be in Mars, Muses, Mimas, Alita, Ares, P6 and P10 as all of them are using the same method for updating.
Nonetheless a broken call won't explain why you seem to see 2 different pages at the same time. Unless they broke the NativeWindow API. But that seems unfeasible as some core frameworks rely on it, even when most final apps don't use it directly.
Anyways, happy to know it doesn't happen elsewhere.