Unity IAP sometimes seems to occur the main thread stuck like deadlock or infinite loop.

[k-hida]

After we updated Unity IAP v2.1.1 to v4.1.2 in our app, an issue occurs described below.

Sometimes (although it’s rare, I guess ~1%), our app hangs on at IAP initializing timing, and once it occurs, it reproduces until reinstall or update the app.

Some of our customers reported it. All of them are iOS users.(It may be by chance, because share of iOS is much greater than that of Android in Japan)

As a workaround, we reverted IAP to v2.1.1 in only iOS app for now. After that, such inquires from our customers stopped.

I found some IAP issues of main thread stuck related to IAP in this forum. So it’s possible to be an IAP bug.

UnityIAP init freezes the main thread

Sometimes (rate is ~5%) our application hangs on start. No errors or exceptions, it’s definitely a deadlock of some kind. This happens on both Android and iOS. Recently we were able to catch this on our side and get a few logcat traces (they are attached). In all cases last app log is ‘UnityIAP Version: 2.2.7’. This is the last call made on the main thread before the deadlock (see the logs). We double-checked that the very next instruction after ‘ConfigurationBuilder.Instance(StandardPurchasingM…

Deadlock occurs when parse some specific apple receipt on version 4.1.0 and higher

Hi, we found when parsing some specific apple receipt like attached file, a deadlock will occurs in Asn1Node.cs : private bool ListDecodeIndefiniteLengthInternal(Stream xdata, long offset) { bool hasAtLeastOneChild = false; while(!DetectEndOfContents(xdata)) { xdata.Position -= 2; if (CreateAndAddChildNode(xdata, ref offset)) { hasAtLeastOneChild = true; } …

Does anyone have ideas of its cause?
Is it possible to have been resolved in IAP latest version?
Or let me know the latest version of IAP which you guess is safe.

Below is Unity and IAP version where the issue occurred .
Unity 2020.3.22f1
IAP 4.1.2

I attached the UnityIAP.cs which contains the class calling UnityPurchasing.Initialize().

8005841–1029722–UnityIAP.cs (5.58 KB)

[Baste]

You should probably post in the IAP forum here Unity Services - Unity Discussions rather than in documentation?

[JeffDUnity3D]

@k-hida Ensure to be using IAP 4.1.3, we fixed an issue with iOS receipts that sounds like your issue.