Does anyone have any experience with this? I'll be calling Britax first thing in the morning, but I'm curious...

My dad said it to me last week on a hot day that the chest clip on our Britax Advocate CS 70 didn't "click" when he put my daughter in. He thought it had to do with the heat and the plastic swelling or something. I had no problem with it later that afternoon.

Lo and behold, today I couldn't get her out! When I went to squeeze the chest clip, it wasn't aligned properly anymore. My dad got it after some maneuvering. When I went to put her in, I noticed that it didn't make the clicking noise.

We have twins, and my son's clicked fine, so I know the noise I'm looking for, etc.. and know that I'm doing everything right because his is fine.

Anyone else experience anything like this? I'm nervous with her in it because it seems like the integrity is compromised in some way .... thoughts??