That doesn't sound good. Can you pick up another pack of s 05? You could add it after confirming no activity after 48 hours.I don't really know. I had boiled water and then added tap water to get to 35C to add the yeast, then it was a bit below 35 and added another bit of the boiled water to it again but it had been sitting so it was well below boiling temp.
I didn't feel like the rehydration process went well over all. It was my first time rehydrating and it was my first AG day so I was a bit flustered while doing it. Wishing I'd just pitched it dry now.