WPF FileNotFoundException on initialisation

Description
Hello!
We're seeing FileNotFoundExceptions occurring a low level (~0.1% of uses) during the initialisation routine. It's not clear from the exception what exactly can't be found.

The users who are getting this exception are also using it without a problem in the same session.

Anyone have any idea what might be happening here?

Thanks!

Version
SDK: 1.0.1518.46
Runtime: 109.0.1518.78
Framework: WPF
OS: Windows 10

Repro Steps
We haven't been able to reproduce this

Additional Context

• We're currently packaging WebView2Loader.dll at root level and not in runtimes\win-x86\native, though that shouldn't be an issue as CoreWebView2Environment.LoadWebView2LoaderDll() specifically checks the app root level, as well as the runtimes path
• We're using CoreWebView2Environment.GetAvailableBrowserVersionString() to verify that a user has WebView2 installed on their machine before continuing, which finishes without throwing every time

Stack Trace

System.IO.FileNotFoundException: The system cannot find the file specified. (Exception from HRESULT: 0x80070002)
   at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)
   at Microsoft.Web.WebView2.Core.CoreWebView2Environment.<CreateCoreWebView2ControllerAsync>d__8.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
   at Microsoft.Web.WebView2.Wpf.WebView2.<>c__DisplayClass33_0.<<EnsureCoreWebView2Async>g__Init|0>d.MoveNext()