"Unable to Refresh null" error in HPM

This issue has come up before, but my setup has nothing in common with previous posters, so I'm tossing it out there. I consistently see the following error when I do a MATCH in HPM (1.9.7):

After cleaning house (i.e. deleting any unused Bundles) the only two remaining Bundles are for HPM itself, and CoCoHue (which I presume belongs to the built-in version? though HPM keeps wanting to "Match" CoCoHue app for some reason).

Nothing particularly helpful in Logs:

If it matters, I'm running 2.4.3.177 (beta) on a C-7, but I think this issue predates my jumping into the beta channel.