I opened a world while starting 1.0 and 1.3 after i was done i deleted the versions from the luancher and the worlds and started 1.15.2 and one i made a new world the texture pack looked like it did in the other versions but i never changed them(im on the defualt texture pack the entire time). Please help me i dont know how to change it back to the texture pack from 1.15.2.