Problem : When generating the report "Income summary: By Tax Year and By Tax Rate" the report seems to hang.
Cause : An income posting date out of range. E.g. an income entry has been posted with year 0005 rather than 2005. The system is generating a report that now spans 2000+ years so will appear to stop working as it processes all records for each year (even if there are no postings in the year). If the system is left the report will be generated correctly.
Resolution : Examine income postings by date and look for one or more that may have been posted with an incorrect year. A quick method is to use the cash account browser, select all cash tracking accounts then sort by date and see if the earliest posting date is well out of expected ranges.