Last night I encountered an issue. Here is my setup for background:
Trainer: Kickr Snap
PowerMeter: PowerTap Hub
Heartrate monitor: Garmin
Smartphone: Iphone 6 running the swift app for control
Twice last night while in the middle of my ride the resistance to the trainer was lost. I’m pretty sure it happened when navigating to the “other riders” screen on the iPhone and selecting a member. Once on that page I lost trainer resistance and had to end ride and restart Swift.