Mysensors fails to send correct unit system to Gateway

Since 2021.3 where the MySensors integration is setup from the UI the correct unit system does not appear to be sent to nodes on registration.

I have “Imperial” setup as the unit system in home assistant but the data I’m receiving from my temperature sensor nodes is in metric.

Looking at the serial output on the gateway I think this is the response setting units:

206580 TSF:MSG:SEND,0-0-5-5,s=255,c=3,t=6,pt=0,l=1,sg=0,ft=0,st=OK:M

Has anyone else seen this issue or should I open a bug report?

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I see the same. I tried to get node red to set I_CONFIG to “I” but I just get mqtt loops forever.