chalky soap

I made some soap using a slow moving recipe (link below). Lye was at 89 F and oils at 95. It cracked on top after 24 hours. It did not gel though, and they weren’t deep cracks. I used 2% sodium lactate instead of 1% like usual from the recipe calculator amount given. I used EDTA too though...

So I am frustrated....I know this has happened to me in the past, and I don't remember why it happened. I had to take about a 10 year break from making soap to care for my husband who was very ill. I made my first batches of soap (4) in 10 years in December, and they were perfect. However, I...