Thanks for your report and sorry for the inconvenience.
Would it be possible to send the .set file and the project to Hongyuan.Li@autodesk.com for reproduce ? I have tried to reproduce this issue but I am not seeing the same behavior as you have reported.
For AutoCAD Electrical 2012 product, SP1 has been released, you can try to download & install it via http://usa.autodesk.com/adsk/servlet/ps/dl/item?si
What's the report file save format you select ? Excel spreadsheet ? You can try to save the report to other formats (i.e. CSV) to check.
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