Qt - \n doesn't work, but std::endl does?

Qt - \n doesn't work, but std::endl does?

I have a rather strange problem that I've never encountered before and I
have no idea what is causing it. I'm working in Qt 4.7, and I have a lot
of things in my project that print to the terminal. These prints are all
triggered by one button press. However, when I press the button, they
don't all print. Instead, all the print statements that end with <<
std::endl; will print, but the first one that ends with "random
text...\n"; won't, and none of the ones after that will either regardless
of which style they use. If I hit the button again to run the entire thing
again, it will then print the remaining statements, followed by the same
initial output as last time. I could just make them all std::endl, but
there's a lot of them, so I'd really rather not. I've never seen anything
like this before, does anyone have any advice for how to fix it? Thanks!