Suddenly having issues with setup.particle.io and Particle CLI for updating device (Cannot read properties of undefined (reading 'filter'))

Hi, I set up a dozen older Photons with our product two days ago without issue using a combination of setup.particle.io and Particle CLI. The system firmware on these units is 1.4.4.

Today I unboxed a couple more to run through the exact same steps, and for the life of me I can't figure out what has changed. When I try to run particle update in Particle CLI I get:

Cannot read properties of undefined (reading 'filter')

When I try to set up the device through setup.particle.io, I get the error below immediately. I changed USB cables and also rebooted my machine. I logged in / out of Particle CLI. I also tried with a known good previously claimed Photon and am running into the same thing.

Any ideas? I found this old thread: Compile failed: Cannot read property 'filter' of undefined

And just like the other thread, today it's working.