New segment won't backfill
I've had success with a bug report here in the past so let me try again.
For the last year or two, when I created a public segment, it would sometimes backfill with previous attempts from others. Most of the time though, it would not. I found that if I clicked edit on the segment and then saved it without changes, it would immediately start backfilling until completion.
Now I'm having the same initial issue of no backfilling, but Strava seems to have patched the workaround. Now when I click edit and save, it shows an error message that a new segment cannot be created because it's too similar to an existing segment. I get this message even if I slightly change the start or end points, but isn't a slight tweak to these points likely the entire reason to edit in the first place?
It seems like there are multiple bugs here. First, no backfilling, and second, inability to actually edit start and end points of a segment slightly.