with multiple enctypes specified, only the last one will actually take effect. If you wish to provide support for more then one, you need to add the values (0x04 + 0x08 + 0x10 = 0x1C). 
replacing the 3 lines with one line to enable all three. Note that the keytabs generated will have 3 line for each principal (one for each enctypes).

See msktutil man page for further details on enctypes.