We started noticing that for some users the app is crashing as soon as it opens. They cannot get past the issue unless the app is removed and re-installed. There are several similar, but related crashes that we are seeing and all pointing to CFNetwork. The main ones we are seeing are CFNetwork _CFURLStorageSessionCopyCache, CFNetwork _CFURLStorageSessionCopyIdentifier these are showing on our firebase crashlytics console.We recently updated some of the code within our app to use Async / Await and there are several API calls that are called on the app startup to get necessary data. The only test device we have with the issue has not used the app for some time before we updated and opened it. On this device, it crashes every time the app opens.On other devices, we do seem to get a crash after opening and closing the app repeatedly, which we think might be the same issue but are not 100% sure as we can't debug the issue when it occurs as it is very sporadic and never seems to occur on the simulator and only after reopening the app several times in a row.Configuration: We have seen this occur on different versions of iOS. A few examples of devices are: the iPhone 6s running iOS 14.8.1 and iPhone 12 Pro running iOS iOS 15.3.1.Xcode version 13.3.1 (13E500a)Steps to Reproduce: For the devices that crash every time, it seems the issue only happens on devices already logged in after updating to the latest version of our app v9.1.5 (306).For devices that don't crash on startup every time we have found that we need to open lots of apps in the background and then open and close our app and usually after about 5 times a crash occurs.