HJL21

Hi, after loading the autosave on the A350-900, the plane doesn't follow the autopilot altitude . i tried to pull/push the alt knob, check the FPLN and the CRZ ALT status, but its all normal. it says on the PFD: OP CLB with green text, but it also says ALT CRZ with small blue text on it. i dont have any idea why this is happening with my knowledge. Its also says NAV on the PFD so it is in the NAV mode...