Missing O2 signs...?

Not 100% sure of this is a bug, but it’s weird indeed.

I got this warning message today, but, unlike other times, there are no O2 signs anywhere to be seen.
Also I don’t know if it’s relevant, but my average RDI is 2.

I’m using a galaxy note8, android 9, and a ticwatch pro 3. The program version is 20210808 (22471) Premium

Sorry about that, we are working on the issue… at the moment there is a workaround, please use menu > edit and than back and the O2 signs will show up…

Many thanks and sorry for the trouble…