Weighted Average Errors

[StephenF]

Trying to run this and it just bugs out with a not so useful message:

Error: Weighted Average (125): The Action "Tool #9" has an error: ParseError: Unterminated entity reference, 'O' at line 1 and column 90
while processing "Action_UpdateRawXml"
Error: Weighted Average (125): Summarize (11): The field "Weight" is not contained in the record {Action=Sum).
Error: Weighted Average (125): Formula (13): Parse Error at char(25): Unknown variable "__Sum_Weight" (Expression #1)

Funnily Weighted Median from CreW metrics is giving me no trouble with the same dataset.

[Storm]

Possible to attach your workflow?

[StephenF · Accepted solution]

Ok, the issue is the component wont accept a column header called: O&O Ad Views  , Not sure if its the ampersand or what that caused it to break. 

Maybe I can report this as a bug.