Sketchfab site behaving strange in Safari M1 MacBook (13.1)

Hi I was wondering if anyone else is experiencing odd behaviour with the skethfab website lately in Safari on a Mac?

If I click on a model, I have to refresh the page for the page to appear. Also sometimes the models page will just stop being scrollable.

in addition to this, this model of mine is flickering (looks fine in chrome) . Its always rendered fine when ive view it in years gone by MechWarrior - 3D model by nickknacks [5e030dc] - Sketchfab