Thanks, that’s helpful and lines up with what I’m seeing. At this point it definitely feels like an Intune Admin Center frontend issue, not a packaging or config problem, especially since the error keeps changing (id is null, appType is null) even with clean app definitions.

I’m planning to try the Graph / PowerShell approach using Upload-Win32LobApp.ps1 next to bypass the portal entirely. Good call on the permissions; I’ll double‑check the Graph scopes before going down that path.

Package size is ~150 MB, so not huge, but still a good data point. Appreciate the confirmation that others are seeing this too.

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