This is a small issue but the library on mobile does not update the library on the website and when you read chapters on mobile it does not update your position. Ex im on chapter 550 i read until 555 on mobile when i open the app on mobile again it goes back to 550. Another issue is when new chapters are read on website and you go on mobile it shows those same new chapters as chapters not read. This means you have to go through every novel just to double check on mobile to make sure there isn't a new chapter that is missed. Most of the time however you just see chapters that are already read. I'm on IOS on Iphone 6s+ in case this issue is only effecting me.
Webnovel app not updating library