G55 P1?? What control are you working with??
If it is a Fanuc, I don't think there is a G55 P1, if you want to keep on using extended WO, you will go with G54.1 P1 thru P59 I think.
So 1st offset G54.1 P1, then G54.1 P2 , G54.1 P3 and so on thru G54.1 P59.