I have the exact same problem! Last score is saved, not the best one!
GIRONA landing challenge
They don’t have:
If UserCurrentScore > UserBestScore Then
UserBestScore = UserCurrentScore
End If
So we get a crazy leaderboard:
Top 10:
Then Top 10 a few minutes later:
Then Top 10 a few minutes later:
I put them close to compare:
1st rank in top leaderboard is 7th in 2nd leaderboard!
1st rank in 2nd leaderboardin not in 3rd leaderboard!
Ridiculous!
Indeed, you should have 1,720,190 points,
Earlier, I just saw you disappear from the top 10.
They have forgotten this IF:
If UserCurrentScore > UserBestScore Then
UserBestScore = UserCurrentScore
End If
Utterly ludicrous! The Competition becomes utterly pointless in such conditions!!!
Spent countless hours trying to beat my score, and when I finally get an amazing score… It doesn’t save. It’s the Iceland world update that doesn’t save for me. 
Yep, still happening. Today it even reduced my high score when I scored below it in the new Girona challenge. That was a first.
Yeah the new score reset bug is also happening to me… but hey, you just do the challenge until you are happy and then never fly them again… these issues are getting out of hand
Or record them with old fashioned pen and paper, never fails!
But this doesn’t fix the leaderboard being wrong, and so nobody knows in what rank they really are.
It’s like doing long jumps without measuring anything…
I also have the same issue, especially in the last landing challenges of World Sim 8 (Girona, Leon, Bilbao, Portimao, Pico) . Neither saves the best score.
Same for me, for all 5 challenges: the last score appears in the leaderboard, not the best. I did a few times 1.6+ million then I try again and if it’s lower, the lower score is my “best” score!!!
Yes that’s how it is. Too many updates cause countless problems. I’m afraid this is going to be a very long road, until the program is definitely finished. Microsoft has cheated us, we should have paid only part of the program, the rest when it was finished. It would be fair!
Same with me. Just did the Leon Challenge and got over a million, then went back to try it again, and got under a million, and my high score was erased and replaced by the lower “B” score. What a shame, I would have thought that this would have already been corrected by MS/Asobo. Hopefully, with the next SU…
Mario
Yep, the new Spanish and Portuguese landing challenges that just came out have the same old bugs than the existing ones : best scores not holding.
Besides, the picture for LEBB Bilbao shows a TBM930, instead of the Airbus A320 :
I had this problem 100% of the time for the past month or two. Then, after fully updating sim/world update VIII, it worked. For one amazing and glorious day.
Back to fail now. Good times.
I am having this issue as well with some challenges. It was working previously but now new scores will not replace old ones, even after checking again later. Below you can see that I received an A in the Arlanda challenge in the famous category but it didn’t update.
Can anyone confirm for me if the problem of the challenges not updating the new best score is fixed.
For me, it appears to be. I’ve done a couple of trials, and it seems to be updating correctly now after SU9.
Can anyone confirm this please. Thanks.
Mario
@PlaneTadpole766 That is great news if the issue you were experiencing is now fixed.
I can’t confirm that it isn’t working. I have always had a high score update without issue.
However, as a follow up to my previous post concerning incorrect grades attributed to landing challenge scores, for me this has not been fixed (as yet).
Example:
My experience is still that in order to re-achieve the “A” grade for this landning challenge, I currently have to achieve a score greater than my existing high score of just over 1.7 million 
Hi tamalien,
I’m sorry that the scoring is still not working for you. I tried a couple more challenges and, for now, it still seems like it is working well for me. I’ll keep my fingers crossed.
Mario
Still not working for me (Since last September)
As an update to my post yesterday… I tried MSFS landing challenges again with an empty community folder and even though I failed to beat my previous high score I still achieved a score over 1 million, the threshold for an A grade. The previous B grade was then updated to the A grade, while still keeping my original best high score. So something has definitely improved:
