I just purchased this camper. When I was closing the large slide out I noticed the floor rising up about 2” on the slide like it wasn’t sliding in properly. Is this normal operation. I went and looked under the slide and noticed one of the brackets has moved from where it was. Could this be the problem. Also I noticed when the slide is closed it’s flush on the top but the bottom seems to be out a inch. Any help would be greatly appreciated. Thanks