Hi David,
I selected ONE workout and chose Delete, some unselected workout were also deleted. I cancelled the Delete action in the middle. However, many workouts have been removed.
Could you please check the bug?
In addition, how can I recover the deleted workout? Can I make a reset to load all the Strava workout again?
Thank you.
Eesh I had better sort that out. Did you already undelete the deleted activities? I don’t see any of those in your data?
I have disabled bulk delete until I can fix this.
I were so upset to see the fitness downed to 60, so I uploaded the .fit file manually 
It was so good that I can stop the deletion in the middle.
Sorry about that. It is possible to undelete activities from that page: Change the filter to “Deleted” and pick the ones you want to undelete. You can also go to “Options” and “Show deleted” on the calendar page, then click deleted activities to undelete.
I tried this but it showed nothing from undelete list. That why I reported the bug.