Calendar button cusing app to quit

Hi all
My Clarion 10 app has recently started giving my users random issues.
The app is launched inside of terminal servers (server 2008 R2) which all use the same dll’s from the same directory.
The most recent issue is that clicking on any of the several calendar buttons causes the app to quit.
The issue is only manifesting on one of the several terminal servers. The strangest thing is that simply copying the directory and launching from there fixes the problem for a while. I’m thinking that the problem is more about the server than the app but I don’t know where to start. Does anyone have any ideas?

Are you able to create a sample app that also exhibits the same problem on that server?