I just installed the quickstart for Rhythm and took a look at the Home page layout in SPPB. The first row contains a Slideshow and changed the background image to my own image for the first 'slide'. But when I try to click "OK' (top or bottom green button, I see an error on the Controllers Gap From Right field.

Strangely, that field is set by default as -180 but the pop up says it must be zero or more. If I change that field to zero and try to save the addon, the green save button does nothing.

With Developer Console active, I see this error:

An invalid form control with name='' is not focusable.

Please advise if this is a bug?

Chris