My "snores" chart has undergone the same type of metamorphosis. Where the baseline was 0 before it is up from zero a little now. I just noticed the snores change this morning. Don't usually look at it because it has been rather boringly uninformative for me.
For a while now I have been chasing what appear to be phantom leaks. I have checked the humidifier seals - they look OK. Tried brand new, out of the factory sealed bag, tubing. Put various new parts on my Mirage Quattro - cushions, elbow assembly. For the last 2 nights, I have even tried a brand new Mirage Quattro that is one size larger. Seems like it does not leak but shows the same graphical pattern.
If anyone can spot something I forgot to check (I do forget things now and then ), I would be happy to hear about it. I would be thankful for any suggestions.
Thank you in advance,