Simulink AUTOSAR - Units for interfaces not defined in ARXML files

I have created an AUTOSAR SWC in Simulink and have defined several S/R interfaces as busses. However in the generated ARXML files there are no units defined even though I defined them in the type editor:

This is how these interfaces are defined in the datatype ARXML:

1) Implementation type:

The referenced data type "Float" does not have any unit:

2) Application type:

The referenced data type "Float" references compu and constraints:

The compu references "NoUnit":

Also the contraints references "NoUnit":

How do I get the units that I defined in the Type editor to show up in the ARXML files?