Having a weird issue after working in the viewport or maybe after importing items from another scene. I will switch back and forth between Ortho and Perspective views while working on the scene, then when I try to render a perspective view, Vray will still render Ortho view instead. I have to close the scene and re-open it. One time, the scene crashed upon opening and I had to use an autobackup since the scene was unusable.
Just to be sure, do you have the Orthographic camera mode activated in the camera rollout of the render settings? Otherwise, does it happen one every scene? Could you demonstrate the issue in a video recording? If only this scene is affected, could you send it to support@chaosgroup.com so we can take a look? Mention this thread in the e-mail along with your V-Ray and host platform versions.
I thought it was a one off but its happening again. Ill try to get a video recording.
I am unable to reproduce the issue. Could you attach the scene here and post a step-by-step description of the issue reproduction? Also, what versions of V-Ray and 3ds Max are you using?