After upgrading to 2025.6 from 2024.36 we occasionally have the following exception in logs. It is not quite clear what exactly triggers it.
An error occurred in the web application: Could not load file or assembly 'ProGet.WebApplication, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.
URL: https://xxxxxx.local/0x44/ProGet.WebApplication/Inedo.ProGet.WebApplication.Controls.Layout.NotificationBar/GetNotifications
Referrer: https://xxxxxx.local/feeds/xxxxxxxx-nuget-proxy-telerik/Telerik.UI.for.AspNet.Core/2025.2.702
User: (unknown)
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36
Stack trace: at System.Reflection.RuntimeAssembly.<InternalLoad>g____PInvoke|49_0(NativeAssemblyNameParts* __pAssemblyNameParts_native, ObjectHandleOnStack __requestingAssembly_native, StackCrawlMarkHandle __stackMark_native, Int32 __throwOnFileNotFound_native, ObjectHandleOnStack __assemblyLoadContext_native, ObjectHandleOnStack __retAssembly_native)
at System.Reflection.RuntimeAssembly.InternalLoad(AssemblyName assemblyName, StackCrawlMark& stackMark, AssemblyLoadContext assemblyLoadContext, RuntimeAssembly requestingAssembly, Boolean throwOnFileNotFound)
at System.Reflection.Assembly.Load(AssemblyName assemblyRef)
at Inedo.Web.Handlers.DynamicDelegateHandler.GetHttpHandler(GetHandlerParams args)
at Inedo.Web.Handlers.DynamicHttpHandling.GetHandler(AhHttpContext context, String requestType, String url, String pathTranslated)
at Inedo.Web.AhWebMiddleware.InvokeAsync(HttpContext context)
::Web Error on 31.07.2025 17:06:40::
When opening https://xxxxxx.local/feeds/xxxxxxxx-nuget-proxy-telerik/Telerik.UI.for.AspNet.Core/2025.2.702
the package site is shown and also the package can be downloaded without any problem or exception.
Deleting the package from the cache and repopulating the cache did not help either.
Opening https://xxxxxx.local/0x44/ProGet.WebApplication/Inedo.ProGet.WebApplication.Controls.Layout.NotificationBar/GetNotifications
in a browser returns the following page:

For every reload of this page, a new entry of the same exception shows up in the logs.