Bug in adding new screen to an Activity

I am trying to add 2 more screens to some Activities on the watch but after pushing the + button and choosing Up Ahead or Route Elevation (or something else beside Custom Data) it looks like it is added to the activity( it disappears from the choosing list) BUT it does NOT being added to the activity screens

Tried it on the watch menu and from Garmin Connect on phone... same thing

Problem is that after closing and trying to add again these 2 fields , when I press + button(Add button) , these 2 options do not exist anymore in the screens that I could add to the activity

So many bugs Disappointed