File combine issues with Skype for Business 2016 install

We have multiple users who have Office 2013 installed with Skype for business 2016 installed (a piece of Office 2016).  These users are unable to combine excel files with Adobe Acrobat, all other Office File types work fine.

If we remove Skype for business 2016 and revert back to the Lync 2013 install everything begins to work again.

Has anyone else experienced this? I'm wondering if this is a side effect of installing partial Office 2016, since the SfB 2016 install creates all the relevant Office 16.0 folders.

We cannot update these users to full Office 2016 due to corporate standards but I'm hoping someone else out there with full Office 2016 can confirm combine works or someone with just 2016 Skype for Business can confirm functionality as well.

Thanks!