Almost 10 months ago, Google AdWords launched a new report set of columns that gave you the ability to show Bid Simulator columns in your reports.
Well, for the passed 10 months, it only worked on individual accounts. Not those who run MCC, or cross-account reports.
Google's Jon Diorio said on Google+ that they recently found a bug with the report when done within the MCC reporting and they fixed it immediately. It implies that the report really never worked properly in that mode, since the feature was launched.
Jon wrote on Google+:
#AdWords friends... we just found a bug with our Bid Simulator Columns that prevented them from being included in cross-account reports. The issue has been fixed, so you can now report on these from your MCC accounts.
So if you've been using them in this manner, you may want to check today.
Forum discussion at Google+.