Schwintek issue on New Montana

[1wayhighway]

Hello everyone. So looking at a 3121 setting on a dealers lot. Asked the sales person to operate the bedroom slide and it would not go out without making some very loud grinding noise. After a little investigation we discovered that the front bottom track was chewed up and you could tell the gear was jumping out of the track. Could not find any obstructions. He had the trailer on a battery jump pack and the voltage was low, could low voltage cause this issue?

The dealer of course says they will fix it and I am sure it is fixable. We are not necessarily concerned about them being able to get it to work but are there other issues we cant see and will they actually fix it or just make it work to get it off the lot.

Anyone heard of issues like this with a Schwintek? Should we just walk away?

Thanks