I need to move the vertical support 1.5" right, because it just happens to line up with the drain line, and that wall is already finished. I know, it's my oversight!

The back panel has been removed, as well as the two pocket screws holding it in place, and I scored/cut the paint at the top and bottom. It still won't budge, and I don't want to break anything.

Does anyone know what else is holding it in place? Glue, staples, etc?

I could cut it, but removing and re-installing is the preferred plan.

Thank you!