I have had the same problems whenever I've tried them, thinking it must be my method. But, at least for me, it didn't seem to matter which brand I used, none of them worked properly.

Mine worked OK, I just didn't like them. And one busted open when I dropped it, and they don't stack flat.

I'm not overly impressed with mine either. The seal doesn't hold, and I think part (most) of it on my part is user error, I may be trying to put too much in, and not folding neatly enough when I do. But I saw on another forum here where ppl are using plain old garbage bags for this, I may give that a try.

april