Adobe Acrobat Won't Open in SB After Minor FF Update

Maybe it will help us find a solution if I mention that I'm using Win 10 and the app is Adobe Acrobat Pro 2015.  The files I click on are saved into the sandboxed download folder and the option appears to display it in Adobe as before.  When I select this option, nothing happens.  What’s blocking it?

See, it's very disturbing that no one has any solutions to what is probably a simple setting change in SB.  That was my concern when this s/w moved from private ownership to the public domain.  Sigh.

Ok.  How about this.  I'm looking at my Sandboxie.ini which I don’t fully understand.  I'm having trouble with my Adobe Pro 2015 opening when select it in the sandboxed window.

 When I look into the Sandboxie.ini file for Adobe, these are the lines of code I see:

At the top:

Template=Firefox_Force

Template=AdobeDistiller

Template=AdobeAcrobatReader

Template=AdobeAcrobat

And further down:

OpenFilePath=%AppData%\Adobe\

OpenFilePath=%Local AppData%\Adobe\

OpenFilePath=C:\Users\user\AppData\Roaming\Adobe\

CopyLimitKb=264194

My app’s path is “"C:\Program Files (x86)\Adobe\Acrobat 2015\Acrobat\Acrobat.exe"”.  Should I put this line in the ini file:

 OpenFilePath=C:\Program Files (x86)\Adobe\Acrobat 2015\Acrobat\Acrobat.exe

or the same line sans the “Acrobat.exe”?

Or am I misunderstanding what this does?

Thanks.