Wishing you and your unhatched chick all the best!
I have seen some miracles here of chicks that I did not expect to hatch nor survive but it does happen!
Keep us informed..we care!
Then I would not rotate at this stage...make sure your humidity level is high...if in doubt put some wet kitchen towel in the incubator to help with humidity
Yes! As soon as possible...! I had one that a chicken ignored at almost full term and put the egg in my oven at a very low temperature until the incubator was at the right temperature for the chick to hatch..it was a success!
Good luck!