Some errors I am working through...MySensors

Hi Guys,

I am having an issue getting one of my gateways working again. I will get to that but as I get my head around the problem I think I have found a bug (maybe) in the component.

I am seeing this error:

2019-10-12 11:47:19 DEBUG (MainThread) [mysensors] Receiving 0;0;1;0;43;um/m3
2019-10-12 11:47:19 WARNING (MainThread) [mysensors] Not a valid message: Not valid message sub-type: 43 for dictionary value @ data[‘sub_type’]

which is being generated by this line in the code:

MyMessage msgDust10b(CHILD_ID_DUST_PM10, V_UNIT_PREFIX);

present(CHILD_ID_DUST_PM10, S_DUST);
send(msgDust10b.set(“um/m3”));

which I think means that the V_UNIT_PREFIX isn’t being supported by the component? Serial Protocol - 2.x | MySensors - Create your own Connected Home Experience

Thoughts?