The problem with the device forgetting place and bookmarks in an epub is definitely only happening in certain files. I tried opening multiple epubs, alternating with kepub, etc. In one epub (which has many chapters in the Table of Contents), it doesn't seem to matter how many times I open and close it. My position and my bookmarks are there. Kepub also works (bookmarks all show 0%, but they all still work). However, I have other epubs which only have one thing in the table of contents, and every time I close these, the position and bookmarks are lost. Well, it's actually when I open those epubs again that everything is lost. Until I re-open one, the % read is correctly shown on the home screen under the book cover icon for it, but once I re-open it, it loses everything and goes to the first page again. This same "bad epubs" actually caused the device to crash and reboot at one point as well.
For example, I have the epub version of "Cranford" by Elizabeth Gaskell, which I downloaded from Standard eBooks [
https://standardebooks.org/ebooks/el...skell/cranford ] and put onto the device with Calibre. This book's entire "Table of Content" is one chapter named "Cranford". This file exhibits the problem behavior, while another epub with many chapters does not.
This video might help make more clear what is happening: