Can't get character bundle 1 to work in Storyline 3 with upgraded project files

I'm working on an Office 2016, 64-bit, Windows 10 machine and recently upgraded from Storyline 2 to Storyline 3.  My project files originally created in Storyline 2 were upgraded.  When I install the character bundle 1 (run as Administrator), I suddenly get the error message attached saying my file is corrupt and it won't open.   I've tried opening multiple updated files and it's all the same.  

When I uninstall the character bundle my files open correctly, but the problem is that I need to revise my photographic characters.  I have a ticket open with support but is anyone else experiencing this or know how to resolve it?  

 

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