It was another trying day.
I sanded the floors and put on another coat of poly. It's not looking good. I may have defective poly. The floors are very blotchy. I'll try another coat or two. I hope I don't have to sand it all off, and start over.
I started installing the porch slats (basswood) on one of the porch rooms.I tried Weldbond, since I need to avoid toxic chemicals. That made the slats warp. I switched to Aleene's fast grab tacky. That worked out much better.