If they have indeed fixed the 3 slot prepatch high-strenght prepatch dragons... Im so happy I bought a ton of them in 2018 lol..
I have one dragon sat at step 4->5that I can assign points to, but havent out of fear of anti-exploit code messing those up too.
I got some sat at first stage, some unclicked just waiting for them not to "jump" to 5 slot rightaway.
It sucks that exploits cause legit pets to be harmed.