Notice the +NAN, indicating that the double value is not a number. Ideally this should be accepted, and the value in that cell should be the equivalent Excel error: #NUM!
I don't know if there is a good way around it. The report uses the <#Table.*> tag, which precludes default values. I don't want to hard code each column because this page in the reports is for displaying diagnostics, and the record fields change often as a result. I'm not even sure if adding defaults would work anyway.
Is there anything I can do to harden the report against NAN values?