I recently installed Home Assistant (using Docker), with the intention of integrating my RFXtrx433 and Homekit.
The RFXtrx433 part worked perfectly, and I added two temp sensors to HA.
Homekit worked at first, but after about a minute the sensors changed to “Not Responding” (in the Home app) and never came back.
I tried the same setup with Domoticz and Homebridge (both in Docker) and there are no issues. This makes me think it must be a Home Assistant issue (rather than iOS or the RFXtrx433).