The fix works for me. No new leaks.
It's just that when it leaked out a half bottle of Lionel Premium Smoke Fluid a week ago, it seeped up into the back wall between the two layers the wall is made out of. Then that seeps back down onto the platform floor. So I peeled apart the wall and dried it, then put the wall back together. I also found fluid under the antenna plate that was glued to the inside of the wall. The leaky hose must have been touching the bottom of the antenna and capillary action occurred there too.
I probably should have asked for a new dry one, but I'm gaining on it. It looks good now...dry everywhere I think.