Hey, sorry for the late reply, work work work

, EPUB should be attached.
The only thing I change during of after downloading are the tags. Other then that it's all pretty standard.
Ps. when I tried to sync this book it created a new book, when I deleted and tried to duplicate it was working fine, not sure what I did wrong here.
Pps. the darkmode is an android (phone) issue, webversion works fine, I have yet to test IOS (tablet).
Which leads me to the question, which rules do you use to get a unique identifier to sync books? For example if I have the same title different author what will it do?
Further I actually manage to set a custom column named Show, which allows me to separate books into bookshelves by show. But when I open the book it only show the standard tags, and not the ones I've addressed to separate columns like characters, pairing and genre. I would like to be able to search on these tags and see them when I open the book, same as the other basic tags.