NYX Lip glosses weird reaction?

So i was just playing around with my nyx lip glosses, kiss and brown topaz and just stirred them with the applicators inside the tube and when i took out the applicator it was like strings of lip glosses where literally being sucked back in to the tube and i check to make sure that it wasn't just dripping and it wasn't it. little string attached to the applicator were like popping and being suck back into the tube and so i threw them away, but my other 2 glosses clear and natural didn't do anything. Anyone else experience this?