I have a Find In Files search window pinned to the right side of the screen. It just crashed and a window popped up with the following information:
Invalid object handle
tbdockchannel.ex 452 _tbDockChanMouseInCallback(3,_tbsearch_form,9348,Search Results,1,1) p_window_id: 22 p_object: OI_FORM p_name: _dock_channel_form
dockchannel.ex 4038 dockchannel:_dcCtlOnMouseIn(_tbsearch_form,1,0) p_window_id: 23 p_object: OI_IMAGE p_name:
dockchannel.ex 3853 dockchanSelect(3:_tbsearch_form) p_window_id: 23 p_object: OI_IMAGE p_name:
dockchannel.ex 3899 _dock_channel_form.lbutton_up() p_window_id: 23 p_object: OI_IMAGE p_name:
The window also has tabs for References and Output.
After crashing, the window wouldn't slide out any more. I had to close and reopen SE to get it back.
BTW, it would be nice if the pinned windows would come in front of any editor windows when clicked. I don't like moving windows out of the way.