Hi ! I've been playing with some budget CGT OBJ/MTL models, ran into two weird, and probably related issues.

Any single import is well behaved. Any second has its @Y and @Z rotations locked together, without altering other dial, making it impossible to position.

Also, 'Backfacing' options for either seems intertwined.

Back in my P4 days, such 'Crosstalk' was both a Bug and a Feature. I remember some wonderful effects could be had, but I cannot remember or find the work-around to suppress it...

Help ??

Win'10x64, PPro 11.3, 8-core AMD, 32 GB RAM & two GTX 750 GPU cards...