I generally have two Custom Workspaces: one for when I am working on a single monitor, and one when working with dual monitors. Unfortunately, when I create the second Custom Workspace, it saves the palette position to both of the workspaces. If I try to reset the first one, it saves that position to both. It kind of defeats the purpose of having them
Mac OS X 10.9.3
Photoshop CC 2014 (20140508.r.58 x64)
Everything is up to date.
Fixed a very similar issue by deleting manually the custom workspace from my "workspaces" preferences folder, but leaving in "workspaces (modified). See if this works for you
Didn’t work for me.