Please see either:

Mobile: https://github.com/popstarfreas/dimensions-mcl/tree/feature/mobile-1.4

or PC: https://github.com/popstarfreas/dimensions-mcl/tree/feature/1421

The compatibility layers target 1.4.1.1 which means the terraria servers need to be on that version. If they are not, there is no guarantee that these will work.