Thank you for the reply! I sent message to Apple Developer support with these details, case number 101976773432.

I’m still unable to view our iOS app in the Connect app and I’ve been a user on this account for about 10 years.

An couple updates on the issue: It seems that the problem applies to all builds under this app ID, because a newer build is also affected. Unfortunately, Apple Developer Support replied asking for completely irrelevant information: TestFlight screenshots, user details, and devices, when the problem is happening in App Store Connect. I have responded to Apple Developer Support with the app ID, build number, a screenshot from App Store Connect, and .har logs. Case number 101976773432.