I flew from LSZH to EGLL in Aerofly FS 2021 yesterday and I had two problems:
1. The plane behaved weird on managed descend.
( maybe because I was cruising at FL380)
2. On approach, the plane didn’t follow the route anymore.
The route:
Origin: LSZH RWY 28
DEP: VEBI3W
App: I27 L
DEST: EGLL