1) I had a similar issue in a different version of TC. I believe you'll need to contact support about that one.
https://support.smartbear.com/message/?prod=TestComplete
2) You can try putting a log message right before the Project.Variables line and have it show you the value of the variable. It sounds like you're not always getting the value that you expect.
Hi Marsha_R,
Thanks for your replying,
#2: I was tried as your comment but this bug is still occur. I think no problem with this simple syntax to check variable is exist. This issue should be called bug because it does not occur when restart tool again.
