TDA isn't saving Challenge progress.
I did ride 1 of the Japan Taiwan tour and got the progress bar showing the correct distance when I completed the ride. The ride data subsequently went through to Connect successfully.
When I subsequently loaded up TDA, no progress was shown.
I repeated ride 1, again got the correct progress bar, then immediately went into ride 2, did 1 km or so, then saved it. Again, no progress was shown when I went back to the main menu.
Data from both rides went through to Connect.
Using Windows 11.
I have screenshots if it helps.