Crash in v5.9.1, java.lang.AssertionError @ WebSocketImpl.java:675

[MatthewWhitmer]

I noticed an app crash in Crashlytics from the MixPanel SDK v5.9.1;

Fatal Exception: java.lang.AssertionError
com.mixpanel.android.java_websocket.WebSocketImpl.isOpen (WebSocketImpl.java:675)
com.mixpanel.android.java_websocket.client.WebSocketClient.connectBlocking (WebSocketClient.java:123)
com.mixpanel.android.viewcrawler.EditorConnection. (EditorConnection.java:51)
com.mixpanel.android.viewcrawler.ViewCrawler$ViewCrawlerHandler.connectToEditor (ViewCrawler.java:494)
com.mixpanel.android.viewcrawler.ViewCrawler$ViewCrawlerHandler.handleMessage (ViewCrawler.java:333)
android.os.Handler.dispatchMessage (Handler.java:106)
android.os.Looper.loop (Looper.java:223)
android.os.HandlerThread.run (HandlerThread.java:67)

[zihejia]

hi @MatthewWhitmer , the error is from the A/B testing. Are you using it right now? We are deprecating Messaging and Mobile A/B testing features(more details). It will be removed on Jan 1, 2022.

• If you are not using Mixpanel A/B testing and messaging, we'd highly suggest you opt into our beta version implementation "com.mixpanel.android:mixpanel-android:6.0.0-beta+" It has the current release minus A/B Testing and Messaging and it has our full support.
• If you are using Mixpanel A/B testing and messaging and do need this fix, please contact our support to help us prioritize work. Sorry for the inconvenience.