Yup, lots of complaints since the recent update, which was a downgrade in reliability. Wahoo Fitness used to be the most reliable activity app I used. Now it's too glitchy. I have to run Strava simultaneously, hoping to get one complete log.

It's worse when I use my Wahoo Tickr. If I switch from my Android to iPhone -- because now they won't share the same Tickr -- it takes about five minutes to reset all the preferences.

Check to be sure GPS is enabled. Lately when I re-open Wahoo Fitness on either phone, especially the iPhone, the GPS defaults back to "off". That prevents tracking speed and distance.

If I try to set GPS and Bluetooth on to be sure the Tickr works, the app may run for awhile, then it'll crash and lose the entire log. It's worst on the iPhone.

So for now I'm having to carry both the Android and iPhone to be sure I get one good log, and usually set the iPhone to record Tickr only, and the Android phone to record a regular Strava log. PITA.