Nesting in a tyre...[part 3]

Since my last update on the moorhens nesting in a tyre, I have continued to keep an eye on them whenever I could. Before going to Normandy, I increased my visits as I thought they were due since incubation is meant to be about 3 weeks but, up to the 28th, they were still sitting on their nest. I witnessed a nest exchange and am pretty sure I saw 5 eggs.
I went to check on them almost after coming back and, finally, there was no one on the nest, but there were 2 eggs, and I could only see 1 adult around. On a further visit, I could still only find 1 adult and there was now 1 egg in the nest. Last Sunday morning, I finally saw both adults and no young, so they had definitely failed. There was 1 egg in the nest.
I passed by today at lunchtime and, guess what? They're back at it! Attempt #3 (at least), we'll see how this one goes...