Switching from HDRP to URP - after clean reinstall Shapes seems stuck in SHAPES_HDRP

I am unfortunately switching from HDRP to URP.

I've tried doing a clean reinstall of Shapes (deleting the Library folder after removing the package and then re-importing it). Despite the "clean" reinstall Shapes seems stuck thinking that the render pipeline is HDRP and not URP. 

URP is definitely in the project and the Graphics Settings are set to URP. Because of the errors caused by HDRP being missing from the project, Unity cannot compile and therefore, it seems, Shapes cannot detect that the render pipeline is URP.

Any idea how to fix this beyond starting a new project? 

Thanks!
Daniel