There’s definitely what I’d consider a bug in iOS that isn’t setting your default sort direction when entering the watchlist and other personal lists. That’ll be fixed in the next version.
On old web version it shows all TBA releases in the end of the list, which is kind of logical, but in iOS app it shows TBA releases in the beginning of the list. Can it also be fixed to show TBA in the end? Or am I getting something wrong?
Regarding my previous comment, as I dug a bit deeper, on old web version Lists previews are hardcoded to show only Ranked sorting (even though inside the list you have another default sorting). Workaround to this, specifically for me is to reset Ranked sorting and it will assign ranks according to your default sorting, thus on the Lists previews it will show items which correspond to your default sorting, downside is that you have to reset Ranked as you add new items to lists all the time.