Vnav didn’t work as expected.
Before decending for Arrival to EDDK, I activated Vnav and it initially descended and then leveled off? I tried it once more and it wanted to climb due to the incorrect altitude constraints, import from Simbrief.
Then when locked onto the GS for 14L, the aircraft suddley nose dived and I had to take control. I manage to get locked back onto the GS but then it was coming in much too low, the GA was locked but the aircraft was sitting about 150ft below the published GS.
I love flying it but it has some issues 