DDJ FLX4 Headphone Jack

Just got the DDJ FLX4 and liking it so far. The headphone jack feels a bit weird though? When I plug in headphones it seems to slide in with some resistance but there's no audible click and lock feel like I'm used to with other headphone jacks. Best way to describe it I think- it feels gummy. Doesn't feel like it would come out though. It's not loose. Is this chill and normal for the unit?