Cadence problem since 8.21?

First of all I am only walking and running.

Secondly this might be a Garmin Connect problem and I am on the wrong forum.

But it started the same day I got the 8.21 software upgrade.

When I run I use HRM pro (I think that is the name, it is the red one) when running but not then I am walking.

Problem:

Yesterday I got the software 8.21 and I did a 4.3K walk. Previously on phone app, Cadence is not to be found, on Web it is. But yesterdays walk reported on the phone app a graph stating a Cadence of about 210 but in text it is 105. Same is shown on web. Never had (to my knowledge) any Cadence garph before during walks and only got the numbers on the web.

Picture from phone:

Today I did a 5K run. More or less the same problem. Now I am using the HRM pro. Cadence is reported to be an average of 156 in text but the graph shows about double. 

Picture from web:

Does any of you have the same or is it some random thing?

//Martin