EQE problem with multi-contour seats

Hi, I’ve had an EQE with AMG Line interior and multi-contour seats since March. I blow the sidewalls for me to the max. level 10. But now it’s the case that in 9 out of 10 cases the sidewalls do not inflate again or sometimes only partially (level 3 or so) on the next trip. It doesn’t matter whether between the rides hours pass, or like today just 3-4 minutes. I saved the sitting position with inflated sidewalls in memory and I h abe also an active Mercedes me profile… OtA update is not available either. Does any of you have a similar problem and know a cause? Thank you, Alex