I have had the same problem and posted it in another area
https://community.sense.com/t/have-two-issues-with-sense-maybe-unrelated/20810/7
A reboot did fix it but…it returned in about a week. The other problem I didn’t think was related is the power meter graph lags by about 30 minutes. The reboot fixed that as well but it also returned.
Reading around I have found several posts relating to this issue but none so far I’ve tried have been more than a short term solution.