Issue with StoreKit 2 Purchases: "unfinalized statements / unfinished backups" SQLite Crash

Hi, I’m running into a persistent error while implementing StoreKit 2 renewable subscriptions in my SwiftUI app.

Context

• I have a two-screen flow:
• Screen 1: user selects a subscription plan (monthly / yearly).
  • Screen 2: user fills out personal information and taps Subscribe that triggers the purchase function.
• On first launch or the first couple of purchases (on both Storekit's local and Sandbox testing), everything works fine. The App Store popup appears, the purchase goes through, and I get the transaction result.
• But after a few runs (3rd or 4th purchase attempt onward), my app crashes the moment the App Store purchase popup appears.

Error Logs

When the crash happens, the console shows:

`unable to close due to unfinalized statements or unfinished backups
BUG IN CLIENT OF libsqlite3.dylib: database integrity compromised by API violation: vnode unlinked while in use: /private/var/mobile/Containers/Data/Application/D8D97A11-DF06-4EF2-AC55-138C4739A167/Library/d6d2e85a60f0480c4c17834eeb827a14_MPDB.sqlite
invalidated open fd: 21 (0x11)
BUG IN CLIENT OF libsqlite3.dylib: database integrity compromised by API violation: vnode unlinked while in use: ...`

Observations

• The error only shows after some time maybe due to multiple transactions and switching between plans for the same user, not on the very first purchases.
• If I land on the purchase screen immediately after app launch, the purchase works. But if I wait a while before navigating to the purchase screen, the popup causes the app to crash.
• I’m not using Core Data or my own SQLite database at all - so I assume this DB (MPDB.sqlite) is StoreKit’s internal persistence.

Things I’ve tried so far

• Cleaning StoreKit caches:

   rm -rf                                                                                               ~/Library/Developer/CoreSimulator/Devices/*/data/Container s/Data/Application/*/Library/Caches/storekit

• Rebuilding from scratch, cleaning build folder.
• Switching between sandbox accounts, signing out/in again.
• Added await transaction.finish() after verified purchases.
• Added cleanup for unfinished transactions at app launch:

 for await result in Transaction.unfinished {
     if case .verified(let transaction) = result {
        await transaction.finish()
     }
 }

• Tried both StoreKit Configuration file and sandbox environment but issue persists in both.

Questions

• Is this error StoreKit-specific (internal SQLite DB corruption) or something wrong in my implementation?
• Why would it only appear after a few runs / with a delay before navigating to the purchase screen?
• Am I missing something else in handling StoreKit 2 transactions?

Screenshots of the errors are attached for context.

Any insights would be really appreciated...I’m stuck because I can’t tell if this is an Apple bug with StoreKit 2 or something I’ve overlooked in my code.

Specs: Xcode 16.4 Build version 16F6 iOS version: 18.6.2