I just completed a 1 hour 20 minute VFR flight today. When I restarted FS2024, it was gone. Yesterday, another flight of almost 3 hours also disappeared.
This problem has been known to Asobo/Microsoft for almost a year, and currently, nothing has been done about it. Microsoft and Asobo don’t seem to care, and I think that even with SU5, this problem won’t be fixed. All they want is to sell us their marketplace.
I prefer to stop here because if I continue writing, I’ll be very impolite, even insulting, towards them. 
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Post it as a question for the next dev q&a, it might get picked up.
Horrible … a simple logbook 
My guess is that it’s a cloud save desync problem; your local logbook shows correct information, that information doesn’t get saved to the cloud for whatever reason, and when you restart, the cloud save overwrites the local information. Just guessing though.
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Perhaps slightly more nuanced than that. In my experience it only loses some flights from a session, so I would presume there is some sort of issue with merging newly saved flights into the logbook. Its been said that the logbook looks like a file on your local disk somewhere, and its saved to the cloud as well so there is probably something slightly more complicated than just uploading/downloading a file going on. We have been previously advised that they are having trouble reproducing this issue, hence its feedback-logged rather than bug-logged. I would have thought the easiest way to debug it would be to examine the data merging transactions for a real affected live user rather than trying to recreate the issue in a test environment.
At least I’m not the only one. The logbook seems to have missed more entries than it has saved.
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Definitely.
End of november I stalled Volanta and have logged every full flight I did there. ~400 hours.
The in-game logbook shows ~280 hours since I got MSFS2024, which was on day 1. And this includes all non-completed flights i did to check performance or scenery.
So the in-game logbook should be over 2.000 hours, while it actually recorded less than 300….
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I find that if you restart a flight just after loading in, the flight that you then do will be kept by the logbook
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So restart at the beginning, rather than the end? The latter I had read about.
Yeah load in at the gate/stand. I tend to enter the cockpit and then open the menu. Press restart flight. Let it reload and then continue as normal. Then then flight is logged for eternity
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Using the template below will greatly help the team reproduce the issue and ease the process of fixing it. Before posting, search for an existing report. If you are not sure it’s a bug, please first report in User Support Hub.
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ISSUE DESCRIPTION
Description of the issue: Flights recorded in logbook one day are gone days later, had it happen a few times and thought I was mistaken, but checking on some screen shots of the logbook verified it. As can been seen on the screenshots the flight on the 12/04/2026 has disappeared on the later screenshot
FREQUENCY OF ISSUE
How often does this occur for you (Example: Just once, every time on sim load, intermittently)?intermittently
REPRODUCTION STEPS
Please list clear steps you took in order to help our test team reproduce the same issue: it’s intermittent
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It’s intermittent
YOUR SETTINGS
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What peripherals are you using:
[PC Only] Are you using Developer Mode or have you made any changes to it?
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At least it shows in the Xbox app how many hours played, but i’m definitely missing 70% in the logbook.
I tried that a few months ago during tests and it made no difference as flights still vanished. I even completely reset my cloud save in the hope the reset would erase any setting on the cloud. Didnt work either. I gave up using the in sim log book or hours flown as it simply is not fit for purpose. I run Volanta now before all flights.
Having a quick check on my sim logbook shows the following:
Overview shows Flying Hours - 138 (since the reset)
Logbook shows a pitiful - 56 hrs (since the reset)
Last flight shown on log book is - 11th April 2026 yet Volanta shows a further 4x flights.
Volanta shows 332 hours
My stats have been messed up since I reset the cloud to get my log book back lost 3500 flights and over 1000 hours. It is working now but stats say some is just out of wack.
For instance 923 completed missions with only 102 successful takeoffs.
However the Challenges mode is still accurately recording.
