Perspectives change in Minecraft?

Mi
2

And if I put the change of perspective (f5) on my 4 mouse button, I can only change my perspective if I use it at the same time with e.g. Press, I'm using Labymod in 1.8, please help.

Sh

You're just changing your perspective.

Tr

I think that's because of your mouse.

Find out about a driver for your mouse and configure it if possible.