I can't see the pics. Maybe a firewill issue.
Air coming out the base of the valve stem can be getting into the hollow of the rim through any spoke hole. Re-tape.
Edit: It's worthwhile to inspect the tape after removing the tire and wiping things down, to see where the leak is. Could be informative as to how this happened.
Sounds like the hole in the tire is sealing, or will seal once the tape issue is resolved.
The roadside fix for this situation is to tube it, after first ensuring there are no sharps protruding through the tire.
Last edited by downtube42; 07-13-23 at 06:52 PM.