Hi guys,

Umbraco 7.5.11, ImageProcessor 2.5.2, ImageProcessor.Web 4.8.2

 2017-03-21 08:14:12,320 [P11620/D2/T179] ERROR Umbraco.Core.UmbracoApplicationBase - An unhandled exception occurred
System.IO.IOException: The process cannot access the file 'F:\web\app_data\cache\d\b\e\8\8\5\dbe885f30b1e2cada5cbfa5f2e2e88e78456a62d.png' because it is being used by another process.
   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize)
   at ImageProcessor.Web.Caching.DiskCache.<AddImageToCacheAsync>d__11.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 ImageProcessor.Web.HttpModules.ImageProcessingModule.<ProcessImageAsync>d__34.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.Web.TaskAsyncHelper.EndTask(IAsyncResult ar)
   at System.Web.HttpApplication.AsyncEventExecutionStep.OnAsyncEventCompletion(IAsyncResult ar)

I have started to see this error since Umbraco upgrade from 7.5.7 to 7.5.11

Thanks, Mike