I have started the update from P3D3.0 to v3.1, using only the install_Client.msi
I have only uninstalled Prepar3D Academic Client from W7 Control Panel and afterwards installed the install_client.msi in the same folder where all P3Dv3 program is located.
I have found a way in order to avoid the problema, and is unchecking the Show Scenario Startup Screen button ... if I do so, the simulator works good and I can fly without problems, at least into the flight I have done of about 30 minutes.
But the problem is not still solved, because if, in any moment of the flight, I try to change the aircraft I am doing this flight with, the simulator again immediately crashes
For the moment I have only updated Client.msi and FSUIPC versión 4.949
Can you please give me any help to solve this problema that I had not in P3Dv3.0
Many thanks
J J Gómez prieto
IVAO 142928