Trail activity data screens issue - elevation plot

I have 2 issues in the Trail run activity configuring the data screens.

1. I added the "Clock and sun" screen and now it is impossible to remove.
2. I cannot enable/see the data screens related to the track navigation:
   1. Elevation Plot screen missing during activity
   2. Uphill track segments screen missing during activity

It looks like a bug in both cases. Any clue about this?

Regards.