Cost is working for electricity, but not gas

I’ve just barely started bringing in both my electric and gas usage with an SDR dongle using the awesome AMR2MQTT integration The values come in well. I also compute the current cost in node red and send it as a MQTT value as our utility prices are a tier based method where the cost changes once your usage passes a certain threshold as well as seasonally. The cost is working for electricity, but despite using an identical methodology is not working for gas. Where should I start troubleshooting? Are there any hooks behind the scene I can use to trace the problem? I am seeing a message in the logs:

Found unexpected unit ft³ for sensor.gas_meter_daily

This message just recently appeared. Is only m^3 allowed?

Update: after upgrading and rebooting, gas cost is now showing up.