Word 2010 minimize button flashing

I am having an intermittent issue where Microsoft Word 2010's minimize button starts flashing and Word becomes unresponsive.  We are running multiple add-ons such as Worldox however the vendors have mentioned never having this issue reported.  Has anyone encountered an issue where the Word minimize buttons starts flashing and if you wait long enough it could be a minute or 30 minutes eventually it stops and you can control Word again.

2010 is fully patched.  We have reinstalled Word.  This is occurring within a Citrix Xenapp 7.6 environment with full desktop published.
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