ColorChecker profile does not synchronize to iPhone 15 images

I’m using Lightroom Classic v14.3.1 and ColorChecker Camera Calibration v2.2.0.

I can create a Camera Profile for a DNG image taken with my iPhone 15 Pro Max and, after restarting Lightroom I can browse the Lightroom’s menu of profiles, find it and apply it to *that* DNG image.  When I Sync that DNG’s “Treatment and Profile” (or even use “Check All”) to other DNGs from that iPhone session, all except the image of the ColorChecker show that Profile but with (!) Profile Missing.

Canon DNG’s working normally:  As has always been the case, my Canon 5D Mark III DNG image of the ColorChecker creates a profile which, after restarting Lightroom, then appears on the Profiles menu and that profile synchronizes to other selected DNGs.