Hi Rick,
We have re-created the problem and will make a fix available shortly. In the interim, the program works fine as long as File | User Preferences | General | Auto add items is enabled.
As a matter of curiosity, had the users explicitly chosen their "Auto-add items" setting, or were they just using whatever the default was when they were set up? Did they make any comment about the change in the program behavior?
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Andrew Bates