Help: User Shape Softness broke?

Need urgent help with the geometry room:

I go to secondaries, enable vignette and choose usershape. Geometry room then opens and I draw my mask. Save and attach to the secondary.

When I go back to soften the mask, it doesn't soften but rather produces totally awful banding. Never had this problem before.

Project footage is PAL ProResHQ. Monitoring via HD Link on a 24" Eizo.

Any thoughts??

Clay