Canasta HD - Rating goes down after winning games

Exactly.!  My rating just before I shut down was 1039 and now is1016. So I lost 23 pts while sleeping. I empty my cache frequently, also lose points if I have the audacity to play another game and then return 3 or 4 hours later, or if my more highly rated player "vacates" when losing. This is not a new problem, just more people are realizing it. Took a while for me too to notice!