App not appearing in "available updates"

A new version of an iPhone/iPad/Apple TV app was released four days ago. It includes a fix to a bug that I reported to the developer, so it got my attention.

I ran the update manually on my Apple TV. The update ran automatically on my iPad. So far, so good.

I don't run automatic updates on my iPhone. The new version is not listed under "available updates." More recent versions of other apps are appearing there.

I have the option to run the update manually. But, that won't leave me confident that I'm not missing out on other updates, so I consider that a band-aid, not a resolution.

Spoke to the support team & the manual update was they best they could offer.

Anyone experience the same? Any tips?