This is a Transcend 261BH, couple weeks old, only been out camping once so far. Brought the slide in today to check out something, and it made a disconcerting banging sound that could be felt thumping through the floor. Only happens during the last bit of travel in the last few inches before full extension, and again right as it starts coming in.

Any ideas? The motors for the slide are inside the frame, I assume? I'm guessing something slipping, but I'm not an expert.

For your viewing/listening pleasure:
https://youtu.be/7v81q5O_iTw
https://youtu.be/W3cRJfwKkfw
https://youtu.be/c6TO2RP7ujo

I e-mailed the service dept at the local Blue Dog shop but I don't have an appointment yet. I'm assuming this is not a DIY fix in any case. And even if it were, it would have to be pretty easy ... the thing is brand new, I don't expect to do any major adjustments myself just yet .