I have a test that uses a variable passed from a related test, which works fine for fields that just enter the variable as is, but when trying to use the variable with additional static characters, like creating and email address as follow (RandomWord3)@company.com, extra parentheses are added to the string resulting in an invalid email address.  The result looks like the following Super@company.com).
The trailing parentheses is not allowed by the form.  I'm attaching a group of tests that illustrate this issue, and a screenshot as well.