v15.74/v15.76 Battery Drain?

Since installing 15,.74, last Friday the battery of my Epix Pro Gen2 drains like crazy. The battery was fully charged after the fw update is now empty. With the same setting before etc fw update, my battery had really good run times and I never needed to worry. Ofc I am not on "always"on" etc. Anything I can do to analyze, or fix the problem? I did the usual switch off/on on the watch as well as the phone but it didn't help.