setDynamicIndicator / removeDynamicIndicator won't save on a legacy-compatible published app

Following up on Can’t enable setDynamicIndicator: the fix from last November works for our newer app, but not for an older published one.

On a published app marked isLegacyCompatibility: true, Features → Surface → Zoom App SDK → Add APIs lets us tick setDynamicIndicator and removeDynamicIndicator. The count goes up, but the save (PATCH /api/v1/apps/{appId}, 200) leaves both out of its apis list, and after a reload they’re unticked. It happens on both the Development and Production lanes. On our newer, unpublished app the same steps save them, and the indicator works in meetings.

It looks like the build-flow fix didn’t reach legacy-compatible published apps. We want it for a short status badge while a meeting is transcribed. Happy to send the app ID privately.