

Well you’re correcting a big mistake then : I was certain that the poolish had to stay a lot longer, and specifically at room temperature. This is key to figuring out the mystery, thanks a lot.
Reading through the comments, I’m indeed thinking that the first poolish was overripe and the second one did all the work.
I have a big scale and a small one so I just weight everything for accuracy (and reassurance hah). But with water, ml or g make no difference since the kilo/gram system is based on the weight of water.