Tolino Vision 5 with KOReader - page turning in sleep mode, buttons, stability

[CatoMinor]

Hi, I installed KOReader on Tolino Vision 5, following this tutorial: https://gist.github.com/hasezoey/d16...3132afe4714c7c . I chose also chose an older version of KOReader which works fine (2024.04) - the newest one did not work.
I also activated ART runtime and I use Simple-ink Launcher.

However, I have a couple of issues, namely:
1) When I put Tolino to sleep and open it again, sometimes I am completely on a different page (e.g. on the end of a book). Could it be that buttons work partially even in the sleep mode? Could I do something with this? I use a magnetic cover so maybe an issue here?
2) Sometimes buttons for page turning stop working and I have to restart KOReader to make them work again.
3) The system is rather unstable and sometimes it completely freezes and I have to do hard reset.

Did you encounter this as well? Any suggestions?

Otherwise, I quite enjoy KOReader on Tolino Vision.