Issue: infinite lock in the NSURLSession-delegate thread

[marclegay]

Your Socket Mobile Developer ID

4112CFD9-278B-4FEB-B617-BB5770E10194

Environment

CaptureSDK version: 2.0.73
OS: iPadOS 26.3

Description

We have been encountering an issue with the last version of the SDK (when we upgraded from 1.9.166 to 2.0.73).

The SDK is locking indefinitely in the com.apple.NSURLSession-delegate thread (Thread 3 in the screenshot).

FYI: CaptureSDK events thread (Thread 2 in the screenshot):

Steps to Reproduce

Just start the SDK (no device connection needed).

Afer a few seconds, start an NSURLSession dataTask like this:

[[[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData * _Nullable _data, NSURLResponse * _Nullable _response, NSError * _Nullable _error) {
	// This block is never reached, even after the request succeeded.
}] resume];

Expected Behavior

CaptureSDK should not lock so long the NSURLSession-delegate thread

Actual Behavior

Every NSURLSession request that is made after that never reaches its completion

Additional Context

No response

[cyrille-socket]

Hello @marclegay,

Thanks for submitting this issue.

No other developers reported this specific issue even though it's been almost a month. We will look into it.

In the meantime can tell me if you're using CaptureHelper and if you're having this line into your code before opening the CaptureSDK.

CaptureHelper.sharedInstance.dispatchQueue = DispatchQueue.main

We'll run a few tests on our end.

Best regards,
Cyrille