I've seen similar questions to this one, but none answer my question.
When I look at the Greenhopper Planning board, on the right hand side under the current Version it states that only 6h 11m of time has been spent out of 418 hours.
However, when I look left to the tasks, I can clearly see that about 80 hours have been logged when adding up the Time Spent displayed on each card.
Where does Greenhopper get its incorrect time spent calculation from?

UPDATE (Monday 07 May):
When I look at this page now the time spent only shows the hours I logged this morning, completely ignoring the previous time spent as per the previous screenshot. See new screenshot below.
Am I wrong in assuming there is something seriously buggy with how Greenhopper calculates the time spent?
PS: time version start/end date is from 20 March to 25 May.