The logbook is terrible. Mine corrupts every couple of weeks and I have to go in and manually repair it. I hope they fix this problem in the patch but I'm not holding my breath.
I've been using the logbook editor that is available to do any changing/deleting to
my logbook.
I've found that if you delete a logbook entry that is NOT the LAST entry, you stand a very
good chance of having FSX corrupt the logbook. This is especially true if there were any
comments added to the entry to be deleted, making that record longer than a "standard,
no comment" entry. FSX sets an incorrect record length byte in these instances.
If I know I'm going to delete a record, from test hops, incomplete flights or the first leg
of a saved-and-continued flight, I exit FSX and use the logbook editor utility. I can then
delete records or adjust the times, etc of a continued "saved" flight and then delete the
first leg.
There is also a logbook "repair" utility available that should fix most corrupted logbooks
but will not let you edit the logbook. I've not tried this utility since i know how to fix
a corrupted logbook using my HEX editor.
Paul