So I had a client call with a system down.
The weird issue is this happened on all workstations at one time, the client has 20 local installs, two term servers and when they called I logged onto the server and got the error. All started getting the error at the same time.
Looking at the event viewer on the computers they all showed the same thing
"An error occurred while loading or initializing an addin. Ask your administrator to check the Windows event log for more details. Dynamics will now close."
Checking the Event Viewer provided a bit more information:
"Microsoft Dexterity error:
The description for Event ID 0 from source Microsoft Dexterity cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
Now why this is strange is usually this is just a local error that happens on one workstation? However all their workstations broke at the same time.
On the server I was checking the Dynamics.exe.config file and making sure the DLL existed and checking the version when all of a sudden all the installs start working again.
I guess I am just wondering if anyone has any ideas what happened? We had applied the 2016 YEUP 3 weeks ago and nothing was changed since then.