I had the same problem. It has to do with the way you filter the report.  

Go to Reports

Transaction Detail by Account

Top Right says: "Pivot", "Group by", "Filter", "General Options", "Columns".

Select: Filter   

3 Choices show up:  "Filter by", "Options", "Value"

Click Filter by and choose "Memo/Description"

Click Options and choose "Contains"

The report should now show what has been written in the Memo and Description fields that were placed in each transaction.