r 1320
grab (docked) notation games window, moving to the left, down
->error
grab failed: window not viewable
invokeExpanded
grab -global .application.nb.board.__frame__editor
ttk::globalGrab .application.nb.board.__frame__editor
::twm::HeaderPress .application.nb.board .application.nb.board.__frame__editor 870 80
Not reproducible, but I added a safety handling with [r1328], hopefully the problem is gone.
Related
Commit: [r1328]
r1336
Works fine now!