I have lots of devices with lots of cards. Push them in, and they click. Push them in again, and they kind of pop out. The card was barely sticking out when I pushed it in and it "clicked". Pushing it again does nothing. What am I doing wrong?

It inserts and ejects as you'd expect, but when it's inserted, I need to use my fingernail to push it in far enough to eject...

It's push-push type slot so you would hear it click every time you push to put it in or take it out.

As much as I thought. Thanks guys, I'll try that again. I wonder what's hanging it up?