I have found a card type which is image occlusion plus but there is no option of rotating the mask because sometimes information may be sideways or crossed. So there must be mask rotating option as in the I/O app.
Tip : app don’t work in my mobile.
That means it’s a copy of the original note type – probably that you imported with another deck. You’re better off starting with the default Image Occlusion note type, since you’ll know if you made any changes to it yourself.
Why do you need to rotate the mask? Can’t you make it a different size/shape just by dragging the corners?