You open FL Studio Mobile. You click "Restore Purchases." Nothing happens. Or worse—you get the dreaded error: "This Apple ID is not eligible for a free upgrade."

A: No. Apple does not allow license transfers between Apple IDs. You’d need to buy the app again on the new ID.

✅ – Tweak injection often corrupts App Store receipt validation.

A: This is the most common trigger. Follow Fix #2 (sign out/in of Media & Purchases). It almost always resolves backup restoration glitches.