Un-allowed value in Z-wave Aeotec Multisensor 6 thing config

Not a big issue, but I noticed some remarkable behaviour here.

The config continuously alerts an error on power mode: it states that the nr should be max 1 (see attachment img).
However, the value cannot be changed: even if you try, when opening again the value is back to 2. As a result, it keeps alerting the max value, while it cannot be solved.