Hello,
Please ensure you are using the latest version which is 1.9.8.5. Try other reports to see if the problem is the same, if so, it's an issue with your data entry, if not, it could be a bug in the specific report you are running. Try the Split Series...Jeppesen Style report and see if approaches show there. If so, tell me the exact report you are viewing and whether or not it's a custom template. If it is a custom template, ensure the data field is defined for the column of interest.
If you need further support, please submit a
support ticket attaching a backup of your Logbook Pro data file (File..Archive..Backup).