3D - problem with "Swap Main and Secondary View"

Hey Miguel,

That checkerboard pattern usually means Photoshop isn't rendering any pixel data for that specific 3D camera angle, or the 3D engine is failing to update the viewport cache. Since you're working with an EXR file, it could also be a conflict with how the 32-bit color depth is interacting with the 3D workspace.

A couple of quick things you can try to narrow this down:

1. Check your 3D Ground Plane: Sometimes when you swap to a "Top" view, the camera zooms out infinitely or places itself under or behind the actual 3D mesh data. Try selecting your 3D layer, switching to the Top view, and then clicking Frame Default Camera or Frame Object in the Properties panel to see if it forces the object back into view.

2. Toggle Canvas Defer Mode: Go to Preferences > Performance > Advanced Settings (under Graphics Processor Settings) and see if toggling OpenCL or changing the drawing mode helps.

Like Dave mentioned above, sharing your exact Photoshop version and system info would be super helpful to figure out if it's a known bug or a GPU driver issue!