Once I start with Radical, game stops and goes to Windows

It's the 1st time to try radical. But whenever I starts the game selecting Radical, the game goes to Windows idle as soon as showing the Radical's cockpit view. No problem seen at checking all game files and updating the game to the most recent. I've searhed similar issue but nothing similar found. Any known issue? Or which log files do I need to attach? My trial was with DX11.

 

Have you run dx11 with other cars?

 

When I saw the issue1stly, only radical didn't work altghouh without plugins. In recent version after upgrading the version, all cars didn't work and it was due to plginsactiated( I had been used DX9).

NOW it works well deactivating old plugins.