I thought you couldn't lose clasps - I just received a bronze one for Nürn '44 after having a silver one for several months
I managed to snag a Silver clasp early with the Nürnberg '44 and got up to about 92% on the ship after that so almost (but not quite) Gold. Then I dropped off a bit and was down to a bit below 80% but the summary still listed it as Silver.
And tonight I played a game which went fairly well with a base XP of 1507 and the match summary screen informed me that I was at 84% (ie 1% below Silver) and that I had received a Bronze clasp!
Checking in the summary confirms this - the ship lists as a Bronze clasp for me - wth?
Has this happened to anyone else and what am I missing? Or should I ask WG directly?
EDIT: I've submitted a ticket about this - but I also played another game in the ship and ended up with 1727 BXP so I went up to 86% which means I now received the Silver award. No idea if this will mess things up for the Support dept., but I suppose I will have to explain it to them now.