When, that is, TV.Visible = False.

Actually, the crash doesn't seem to happen right on the .Clear, but
when you try to add a new node to a cleared-while-hidden TV.

I'm too embarrassed to say how long it took me to think of this cute
but obvious fix:

Push TV.Visine, set to True, .Clear, then pop it again.

It should all happen fast enough not to see on-screen.

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What about .Nodes.Remove, you ask?

Cheerfully fails too, when TV.Invisible. Only it doesn't crash Excel.

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