SW version 13.19. I've never had trouble with auto Activity tracking beginning - I have my walks set to 5 minutes. It always kicked in just as I turned the block, and sometimes if I was striding purposely in a store or across the school. However, this has recently stopped working. I have not changed settings, if I go to Settings > Activity Tracking > Auto Activity Start the status is on, and walk is still 5 minutes. Yet I've tested it a handful of times on my normal walking route and it doesn't work. I've wondered if I'm too slow or something, but I did a GPS track of the same route at the same place and the times are right where they've always been, so the pace is as well.
Any advice on how to get this feature back?