VFB Window doesn't open at first start

V-Ray V-Ray for Blender Issues
1

Good day,

Using Blender 5.2.0 LTS and Vray 7.4

Often, when I open for the first time Blender and try to open the VFB window (V-Ray → V-Ray VFB), it doesn’t open. It’s only after starting a render with the render button that opening the VFB window is enabled.

2

Does this only happen only in the time shortly after starting Blender or in general the VFB doesn’t want to open? V-Ray usually needs some time to initialize during which many of our commands don’t work. This is even worse on MacOS the first time you run Blender with V-Ray installed and we have an issue logged to improve this.

3

It happens usually when I first start blender in the day. After that it doesn’t happen anymore (not 100% sure)