BangleRun - distance staying at 0

Right, so I did another run today, and can confirm that the GPS trace is OK - although there's ~400m difference between what Bangle.JS recorded (9.7 Kms) vs. my Apple watch (10.1 Kms).

So the issue has really to do with the display:

• distance stays at 0,
  
• cadence is wrong (at ~70) - but it was good for the first 20 min or so (~150),
  
• number of steps is clearly wrong - 3948 steps for 10K, I don't have that long strides ;)