Single private Android app no longer syncs between Managed Play Store and Intune

This is one single app that's published privately. It's been in the Play Store for years. Recently noticed it no longer shows in Intune at all. I published an update in the production release channel (the only active channel) to see if that would trigger anything, but it did not.  No other apps have "vanished" that I can find--just this one app.  

Besides publishing an app update, I've resync'ed the Play Store a number of times. I've unpublished this app overnight, republished the next day and sync'ed again. Still nothing. So far I can't find ANY logs to see what's sync'ing between Play Store and Intune.  Short of republishing this app under a new bundle ID, I'm out of troubleshooting ideas.  Has anyone seen this behavior before?