It seems so that Live Weather of the Sim is causimg my problem with the speed indicator crash. When I fly with Rex Weather I have not this problem. It’s very funny.
I tried also the Live Weather of the Sim with activating the de-icing before I reached the clouds. But it didn’t help. Also a crash of the speed indicator in the PFD.
When there is no other solution I fly better with Rex Weather. At least with the FBW A320. With other airplanes I have not this problem.
Many thanks for your support.