Sub Floor separating??

[snubber]

2016 Seismic 4212 . Noticed this week that a straight small gap or ridge under the vinyl has developed right across my kitchen floor. Where this red mark is in the picture. In the second picture you can see it if you zoom in. I'm assuming the subfloor is separating at the point where 2 sections of board. Anyone have this occur or know what would cause it. Thanks.

[RogerR]

Please add you model and year so other owners of that model or similar ones can offer advice.

Could you pull up some carpet and look under there? I have not heard of any standard trailers made with a sub floor and some kind of intermediate flooring like regular houses.

[snubber]

Sure. I'll add that. It's a seismic 4212. It's the flooring under the vinyl I'm referring to when I say sub floor. Maybe the wrong term. Carpet seems to be in place and I can't see under it Thanks.

[2015 white hawk]

Did you ever find out what this was caused by? I have a couple spots in my jayco white hawk doing the same thing. Maybe from the slides?