Reset Survial Time? I don't get silver/gold on Crane!

[KingRaptor]

Hi,
my problem is, that i don't get the silver and gold medal on DA-Crane! I made it over 10 minutes twice, but I only got the bronze medal in another match. Anyone else having this problem? The time on the leaderboard shows over 10 minutes and I was on the games before they were started (once it was me, who startet it). Don't know, what to do! Is there any possibility to reset my time on Crane?

Thanks!

[one of them]

Well... it isn't too big of a problem if it's just the medal missing, people can see your actual time. This will probably be included in the next L4D patch.