Harunya

I have some legal Pokemon in my UM, but i want to change the OT and the Gender of the OT for some personal reason. Since i am getting Pokemon Shield soon, i plan to deposit my Pokemon in the Bank so i can transfer it to home. I recently discover this project, and it can edit the OT name (and gender). My main concern is that my Pokemon cannot be transferred through, will changing my OT and gender affect the legality of the Pokemon? Thanks! Just the OT not the Handler :)