I uploaded data 6 Oct and all was fine.
I uploaded data on 5 & 9 Nov and nothing happens in the "Player" when I click "Play".
I've been checking back daily to see if it started working and it has not.
This is the case with all of the data I have ever uploaded - everything always played before.
While Googling the subject I stumbled across someone else's Player link and was surprised when it worked while none of mine do!
I just discover that if I do NOT disable elevation correction it works - if I disable elevation correction it DOES NOT work. As I use this for sailing, I always disable elevation.