Family Screen Time controls no longer working after changing Apple ID

I initially set up our family iCloud settings and Screen Time controls under one Apple ID login. I later changed my Apple ID login (from an @mac.com email address to an @icloud.com one), and after that I have been unable to manage my kids' Screen Time settings from my phone. My partner, defined as a adult in the family settings, can still manage their Screen Time just fine.

Are there steps I can take to make Screen Time manageable from my new ID, or is this a bug that needs to be fixed on the back end?