Guided Decision table not opening

I am trying to convert existing XLS decision table to Guided Decision table in this new version. I validated XLS decision table and it's successful. I converted XLS into Guided Decision table and it's converted successfully. But when I try to open the Guided decision table it throws below error:

Unable to complete your request. The following exception occurred: Parameter named 'columnTitle' should be not null!.

Not sure why this issue occurs. Please clarify