Created Issue: DocumentPane become invisible [14618]

Hello.

I got a problem with bugged DocumentPane when docking.
I have one DocumentPanel which I use to add Documents to it. No problem. I can even Dock the panels (documents) next to each other. Still works. I can regroup them as I wish, but when I put 2 panels next to each other and than close the first one (the pane i use to add documents to it) nothing happens. The DocumentPane becomes invisible (IsVisible = true). No crashing etc.

Any ideas how to destroy and than recreate the Pane with default setting. No other way for me I think.

Regards.