Texture position wrong when applied to roof

Hello,
Simply out of the blue when applying roofing textures they no longer automatically position correctly, I have to rotate with the roof slope. This has never happened before, and have been using Sketchup since it’s inception…
Any ideas? Probably a setting that I am not aware of…I hope.
Thanks

Textures don’t know how the user wants them positioned. SketchUp applies some guessing depending on the orientation of the face, but if that’s not what the user wants, user input is needed via right-click → Texture → Position.

Is your roof inside of a component? If so, maybe you have modified its axes, so that the direction of the roof is not anymore recognized as the top-pointing axes. Double click to enter a component instance, right-click the axes and position it so that blue points towards the top.