We're having the same issue. It has worked intermittently for us over the past few months.  Worked fine 2 weeks ago and then stopped again, this time with more detail in the error message.  Each error message mentions the pivot table. We've tried several company files and have the same issue each time.

Running Windows 10, Office Home & Business 2016 & Quickbooks Enterprise Solutions 18.0

It's a busy time of the year and these reports are invaluable to us. Please get this issue resolved asap!