Yes, somebody else posted about the same problem recently:
https://www.mobileread.com/forums/sh...d.php?t=372015
It seems like it's a defect with the P365 variant. The N365 doesn't have this problem. Whether it's a hardware problem or a software problem remains to be seen, but there doesn't appear to be a solution at present.
If it's a software bug, you might be able to work around it by using KOReader if you enjoy experimenting.