Why am I getting these temperature spikes with Ecobee Homekit?

I have the native Ecobee integration and the Homekit integration setup. Occasionally I will get these spikes in temperature but only on the Homekit sensors. Obviously the room is not jumping to 212F suddenly. Is there a way to avoid this? I tried looking in Developer Tools → Statistics to remove it but nothing is there

Bumping, because I also have this problem as well, across two separate HA instances and 3 thermostats. The temperature plots I have from existing API integrations do not have this problem - only the local homekit integration.

Have you tried the Filter intergration ?