When you keep moving it around, it changes its ambience, like direction of light, temperature etc. So it makes it harder for your cutting to get used to the environment.
Claws that blacken may indicate somehow it felt some cool temps. See this link to give you more information about black tip fungus.
http://plumeria101.com/problem...
I will have to repeat that you have to be patient while waiting and leaving it alone. If you keep watering it, and it has no roots yet, you are just risking rotting at the base that can easily spread to the rest of the cutting.
