Yes, that's related to the dew heater, and the new detection of features.
The gxy1 call should return the feature name and type.

It appears to be looping, but I'm not in front of the computer to look at the code. (Quickly looking at azwing's repo, I don't see anything that I would think could cause it, except repeated calls to update properties?) For a temporary solution, you might try removing that feature?