Outlook 2013 Multiple Not Responding Issues After Adding EE Photos to Active Directory

Recently we went through the process of adding employee photos to AD.  The photos were all added with the CodeTwo Active Directory Photos tool and resized so all are under the 1MB limitation (most are around 40-50KB).

After adding the photos we are experiencing issues with the Outlook clients specifically:
- opening an email from coworkers > print > print screen and Outlook goes to "Not Responding"
- creating an email with other coworkers > save it as a draft > go to drafts folder and try to open email Outlook goes to "Not Responding"

I have done an exhaustive search and cannot find any info regarding these issues.

We are using:
- Exchange 2016
- Outlook 2013 clients
- Server 2008R2SP1 domain controllers

Any insights would be greatly appreciated.
Thank you!