This makes sense, you cannot have get-task-allow=true for an app store submission. I do believe this was also discussed in a different thread recently, and some fixes were marked, so I’m wondering if your current problem was the result of some left-over bad settings on your project/.entitlements file, or if there’s still a general problem for new project, because normally this extra step to set this to false manually should not be needed…
Are you usingf latest? iirc this was two-three months ago that I made tweaks.
Update: this was the thread in question: App Store delivery problem