A while back I deleted some bookmarks on my mobile phone which is the only device currently connected to my account. But I recently tried to bookmark several pages and it says I already have the pages bookmarked but it isn't in any of my mobile app bookmark pages and if I try to edit the supposed bookmark I just get a blank screen. I can bookmark other pages fine, it's just these specific phantom bookmarks don't work. I've deleted browsing data in the app, I've cleared the app cache in my phones settings, I have the latest update for the mobile app. But nothing has worked

Is this a known issue and if so how do I fix it?