Is this referring to the Red Tour and the PWT? Because the Red Tour started a four-month hiatus in February 2014 and the PWT didn't start until May 2014, which means Katy gave Taylor a three-month advance.
Honestly this is the dancers' fault. Its neither of the girls' faults and its not like Katy is the one who contacts and negotiates contracts with the dancers, she has people to do that for her. We should be blaming the dancers themselves and whoever negotiated their contracts, not Katy or Taylor.
This "feud" has been blown so widely out of proportion when it doesn't even make sense. Katy has complimented Taylor multiple times so why would she be trying to sabotage her tour?