Are these the ones you mean? Name:  Clipboard01.png
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I had that problem occur to me awhile back and it drove me nuts. The problem turned out to be a simple fix. Select a different tool and then go back and see if any of the flyouts open. If that and a refresh and possibly a computer restart doesn't fix the problem, then you may have to uninstall and reinstall the prog.
I hope this helps a little, let me know.