@tig said:
Can you provide a simpler example.
[Reread my previous post about 'reversed' faces]
Unless you have a face selected that has a front-material with a texture the tool won't run.
I can't see exactly what you are doing to get nothing happening...
Regarding the rotation - remember that there is no way of knowing a textures current rotation - so any rotation you apply is relative to its current transformation, it is not 'absolute' - so rotating a texture by 45 then by 45 later is equivalent to one rotation of 90; you do not set the texture's rotation to 45, rather you change it by 45 degrees. [also remember that positive angles rotate counter-clockwise, negative angles clockwise]
2D plane can not use this tool.