PSU back button not sticking

[Javno]

So I bought a Silverstone ST65F-G PSU. I put the PC together 2 days ago. And noticed after a couple of times of using the switch at the back of the unit that it is "stuck" in the on position. If I try to put it on "off" it just snaps back into on.

Does anyone know what this indicates, if it indicates anything at all?

Cheers =)

 

[Javno]

Edit: And it was able to switch to the off position initially. The PC still works but it worries me.