# Client swap windows freezing **URL:** \ **Category:** General Discussion\ **Tags:** vision\ **Created:** [October 20, 2023, 8:58pm UTC](https://forum.inductiveautomation.com/t/client-swap-windows-freezing/80793 "2023-10-20T20:58:58Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![Brad\_Mills](https://avatars.discourse-cdn.com/v4/letter/b/4da419/32.png) [@Brad\_Mills](https://forum.inductiveautomation.com/u/Brad_Mills)\ **Post date:** [October 20, 2023, 8:58pm UTC](https://forum.inductiveautomation.com/t/client-swap-windows-freezing/80793/1 "2023-10-20T20:58:58Z")
I have a project that runs on a nuc its setup to swap between 2 windows and it will work for a while then it freezes on 1 screen and have to restart the nuc to get it going again. ---
**Author:** ![Brad\_Mills](https://avatars.discourse-cdn.com/v4/letter/b/4da419/32.png) [@Brad\_Mills](https://forum.inductiveautomation.com/u/Brad_Mills)\ **Post date:** [October 20, 2023, 9:00pm UTC](https://forum.inductiveautomation.com/t/client-swap-windows-freezing/80793/2 "2023-10-20T21:00:00Z")
![Capture4](https://us1.discourse-cdn.com/inductiveautomation/original/3X/b/5/b5d36a5f14b1cbf720ae738c1fe0ca2bbac6c661.png) ---
**Author:** ![Transistor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/transistor/32/3380_2.png) [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\ **Post date:** [October 20, 2023, 9:01pm UTC](https://forum.inductiveautomation.com/t/client-swap-windows-freezing/80793/3 "2023-10-20T21:01:07Z")
Please tag the question as Vision if you want to attract the Vision guys. ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [October 23, 2023, 3:08pm UTC](https://forum.inductiveautomation.com/t/client-swap-windows-freezing/80793/4 "2023-10-23T15:08:29Z")
There's nothing obviously wrong with that script or setup. I've done virtually the same thing for ceiling-mounted Vision-based dashboards. There's almost certainly something else wrong. Client freeze-ups in Vision are almost always caused by abuse of the foreground UI thread with inappropriate scripts, particularly in runScript bindings and propertyChange events. You should search this forum for related topics. ---
**Author:** ![Brad\_Mills](https://avatars.discourse-cdn.com/v4/letter/b/4da419/32.png) [@Brad\_Mills](https://forum.inductiveautomation.com/u/Brad_Mills)\ **Post date:** [October 23, 2023, 4:15pm UTC](https://forum.inductiveautomation.com/t/client-swap-windows-freezing/80793/5 "2023-10-23T16:15:44Z")
```auto 10:25:46.313 [Thread-2] INFO com.inductiveautomation.ignition.client.gateway_interface.GatewayConnectionManager - Skipping local challenge - directory doesn't exist. 10:25:46.319 [Thread-2] INFO com.inductiveautomation.ignition.client.gateway_interface.GatewayConnectionManager - Updated login state. Logged in? true, Username: TTMA, Roles: [], Security Zones: null Creating frame. extendedState=6, bounds=java.awt.Rectangle[x=-1920,y=0,width=1920,height=1080] 10:25:46.351 [Thread-5] INFO ignition.TagManager.Gateway - Starting up polling tag manager, polling rate: 250 ms 10:25:46.667 [Thread-5] INFO com.inductiveautomation.reporting.client.ReportingClientHook - Starting up Reporting Module. Mode: Activated 10:25:46.832 [AWT-EventQueue-0] INFO vision.App - Starting Up... 10:25:47.261 [AWT-EventQueue-0] INFO ignition.TagManager.Gateway - Starting tag polling. Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space java.lang.reflect.InvocationTargetException at java.awt.EventQueue.invokeAndWait(Unknown Source) at java.awt.EventQueue.invokeAndWait(Unknown Source) at javax.swing.SwingUtilities.invokeAndWait(Unknown Source) at com.inductiveautomation.factorypmi.application.script.builtin.WindowUtilities.doGUIAction(WindowUtilities.java:797) at com.inductiveautomation.factorypmi.application.script.builtin.NavUtilities.swapWindow(NavUtilities.java:205) at com.inductiveautomation.factorypmi.application.script.builtin.NavUtilities.swapTo(NavUtilities.java:114) at com.inductiveautomation.factorypmi.application.script.builtin.NavUtilities.swapTo(NavUtilities.java:101) at com.inductiveautomation.factorypmi.application.script.builtin.NavUtilitiesDispatcher.swapTo(NavUtilitiesDispatcher.java:67) at sun.reflect.GeneratedMethodAccessor113.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.python.core.PyReflectedFunction. __call__ (PyReflectedFunction.java:186) at com.inductiveautomation.ignition.common.script.ScriptManager$ReflectedInstanceFunction. __call__ (ScriptManager.java:431) at org.python.core.PyObject. __call__ (PyObject.java:387) at org.python.core.PyObject. __call__ (PyObject.java:391) at org.python.pycode._pyx0.f$0(:6) at org.python.pycode._pyx0.call_function() at org.python.core.PyTableCode.call(PyTableCode.java:165) at org.python.core.PyCode.call(PyCode.java:18) at org.python.core.Py.runCode(Py.java:1275) at com.inductiveautomation.ignition.common.script.ScriptManager.runCode(ScriptManager.java:636) at com.inductiveautomation.ignition.common.script.ScriptManager.runCode(ScriptManager.java:603) at com.inductiveautomation.ignition.common.script.TimerScriptTask.run(TimerScriptTask.java:88) at java.util.TimerThread.mainLoop(Unknown Source) at java.util.TimerThread.run(Unknown Source) Exception in thread "image-cache-maint" java.lang.OutOfMemoryError: Java heap space Exception in thread "client-script-shared-timer-[Welding1_RTM_Office]" java.lang.OutOfMemoryError: Java heap space 10:59:57.619 [TagManager-1] ERROR ignition.TagManager.Gateway - ###Fatal-Uncaught exception during polling. java.lang.OutOfMemoryError: Java heap space 11:00:01.579 [TagManager-2] ERROR ignition.TagManager.Gateway - ###Fatal-Uncaught exception during polling. java.lang.OutOfMemoryError: Java heap space 11:00:01.839 [TagManager-3] ERROR ignition.TagManager.Gateway - ###Fatal-Uncaught exception during polling. java.lang.OutOfMemoryError: Java heap space 11:14:05.296 [TagManager-2] ERROR ignition.TagManager.Gateway - ###Fatal-Uncaught exception during polling. java.lang.OutOfMemoryError: Java heap space 11:14:05.578 [TagManager-2] ERROR ignition.TagManager.Gateway - ###Fatal-Uncaught exception during polling. java.lang.OutOfMemoryError: Java heap space ``` Here is a copy of the console when it freezes ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [October 23, 2023, 4:19pm UTC](https://forum.inductiveautomation.com/t/client-swap-windows-freezing/80793/6 "2023-10-23T16:19:00Z")
> [@Brad\_Mills](#): > > `java.lang.OutOfMemoryError: Java heap space` Well, that's a doozy. Something in your application is leaking memory in the Vision client. You probably will need IA support to help you track that down. ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [October 23, 2023, 4:29pm UTC](https://forum.inductiveautomation.com/t/client-swap-windows-freezing/80793/7 "2023-10-23T16:29:27Z")
You're running some Ignition 7.X version. You should make sure it's at least the latest available 7.9.X release, in case this is a known client memory leak we've already fixed. You should also really strongly consider the upgrade to 8.1, since 7.9 is now unsupported. ---
**Author:** ![Brad\_Mills](https://avatars.discourse-cdn.com/v4/letter/b/4da419/32.png) [@Brad\_Mills](https://forum.inductiveautomation.com/u/Brad_Mills)\ **Post date:** [October 23, 2023, 4:33pm UTC](https://forum.inductiveautomation.com/t/client-swap-windows-freezing/80793/8 "2023-10-23T16:33:05Z")
![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/d/fd8ed0dfad1eaffc11ac85b2881cecbfb084e3c8.png) This is the version we are using. ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [October 23, 2023, 4:36pm UTC](https://forum.inductiveautomation.com/t/client-swap-windows-freezing/80793/9 "2023-10-23T16:36:55Z")
Well, then support is your next best bet. 7.9.21 is out, but doesn't have any memory leak related bugfixes. Support may be able to help you identify what's going wrong with your project. ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [October 23, 2023, 5:26pm UTC](https://forum.inductiveautomation.com/t/client-swap-windows-freezing/80793/10 "2023-10-23T17:26:27Z")
Try giving your client more memory to play with (in the project settings) to see if it runs longer before dying. Or runs indefinitely. ---
**Author:** ![Brad\_Mills](https://avatars.discourse-cdn.com/v4/letter/b/4da419/32.png) [@Brad\_Mills](https://forum.inductiveautomation.com/u/Brad_Mills)\ **Post date:** [October 23, 2023, 6:11pm UTC](https://forum.inductiveautomation.com/t/client-swap-windows-freezing/80793/11 "2023-10-23T18:11:46Z")
![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/a/6/a695bf829a19dd4741e8c19fa3c8cd7989021aa7.png) ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [October 23, 2023, 6:13pm UTC](https://forum.inductiveautomation.com/t/client-swap-windows-freezing/80793/12 "2023-10-23T18:13:40Z")
Not the designer. The actual client(s). It's in the project properties once you open the particular project in the designer. ---
**Author:** ![Brad\_Mills](https://avatars.discourse-cdn.com/v4/letter/b/4da419/32.png) [@Brad\_Mills](https://forum.inductiveautomation.com/u/Brad_Mills)\ **Post date:** [October 23, 2023, 6:16pm UTC](https://forum.inductiveautomation.com/t/client-swap-windows-freezing/80793/13 "2023-10-23T18:16:15Z")
![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/1/9/1952b058511eb9c2450b9916441ef5e543cd490c.png) One of these? ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [October 23, 2023, 6:16pm UTC](https://forum.inductiveautomation.com/t/client-swap-windows-freezing/80793/14 "2023-10-23T18:16:44Z")
Yeah, `Client > Launching`. ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/a/9/a9ce0d90c811daed3e8cdc58410294e3dbc0f365.png)