Ability to UNDOCK "Panes" no longer works

Piquant

I'm reinstalling content. I'd hoped that re-installing DAZ would solve this problem, but it did not. What needs to be checked (or, whatever) to allow me to undock "Panes" again? This just started doing this today.

Taoz

Window > Workspace > Lock Docking/Undocking

Piquant

Oh, my. So easy. Thank you.