Ebc data on k2

Hi all,
Not sure if it’s just me or my failing memory,
Ebc indoor on k2, to the right of the rainbow shows hr, to the left shows cadence. Once in a while hr doesn’t show on upper rt,the usual fix is to open/ expand the metric cell below and hit back, then it displays on upper rt , all good.
Lately on a outdoor ride, the lower data cells for hr and cadence are displaying properly, however nothing up top, the above fix doesn’t seem to work?
The sensors are obviously paired as the hr and cadence info is available on the lower cells, is there something I’m missing or doing improperly?