This appears to be randomly happening again. Curious if anyone else has been experiencing this problem lately. Found the following related logs in the Console: default    15:39:49.352585-1000    storeuid    <StoreKitClient: 0x7f8898d2d820>: Using active account. Sandbox: 1, receipt exists: NO, receipt is stub: NO default    15:39:49.354734-1000    commerce    storeuid[552] starting request app-receipt-create default    15:39:49.455240-1000    commerce    <CKStoreRequest: 0x7f94a1f64e10> https://p100-sandbox.itunes.apple.com/WebObjects/MZFinance.woa/wa/createAppReceipt default    15:39:49.877166-1000    commerce    StoreSession: StatusCode: 200; <private>; Environment: SB-MR; URL: https://p100-sandbox.itunes.apple.com/WebObjects/MZFinance.woa/wa/createAppReceipt error    15:39:49.879812-1000    storeuid    <ReceiptRefreshRequest: 0x7f889a1616e0>: No receipt data in response error    15:39:49.879883-1000    storeuid    <ReceiptRefreshRequest: 0x7f889a1616e0>: Error fetching receipt for X - Error Domain=com.apple.commerce.client Code=500 "(null)" default    15:39:49.880675-1000    storelegacy    StoreLegacy: Failed to renew receipt for application at path X : 'The operation couldn’t be completed. (com.apple.commerce.client error 500.)' error    15:39:49.930396-1000    diagnostics_agent    Invalid receipt [0 bytes]