Power Platform Community Forum Thread Details

Hi,

I'm encountering a recurring issue in Power Automate Desktop. At random moments, I get the error "Arithmetic operation resulted in an overflow." The error message keeps appearing repeatedly, and every time I close it, it reappears. This is preventing me from opening any desktop flow in Power Automate.

What I've tried:

Updated Windows
Updated Power Automate Desktop
Uninstalled and reinstalled the software

However, the issue persists. Below is the full error and a screenshot:

Message: "Arithmetic operation resulted in an overflow."
Error: System.OverflowException
Full error text:

System.OverflowException: Arithmetic operation resulted in an overflow.

at System.Windows.Shell.WindowChromeWorker._HandleNCHitTest(WM uMsg, IntPtr wParam, IntPtr lParam, Boolean& handled)

at System.Windows.Shell.WindowChromeWorker._WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

at System.Windows.Interop.HwndSource.PublicHooksFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)

at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)

at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)