Slideout Question

We just returned from a week long trip in the mountains. Upon returning we backed in the drive and opened the slides. This time the long slide with the dinette acted up. The 2 ends did not come out evenly. The end closest to the front started coming out while the back end did not. After some movement the back end freed itself and all was well. We cycled the slides a couple of more times and noticed once it hesitated again when going out on the same end. There is no problem coming in. Any thoughts or suggestions? I can not find any markings that would indicate it is hanging up.

Make sure the top is clear, could be a stick up there, but that would have probably snatched the seal out,,,,,, which brings me to check the seals up top also make sure theyre not getting dragged / pinched into a bind.
Make sure there's not a leak on the Hydro lines. ???
Gotta be something going on.

Have you lubed the seals. Could be sticking.

Could be some air trapped in the hydrolic line.