File Upload to Folder Error

ASP.NET Maker V2020.0.4File Upload to Folder ErrorI have created a file upload field. All rights are set correctly. After selection via “Choose files” the file name is displayed, but the message “File not found” abc.zip 0.39 KB appears.
Unauthorized
Thanks for help

In the upload folder, i find folders like …944adca7-3689-0fec-df7a-e1b58a5937f0
But all folder are empty. Any Idea ?

Please make sure that you have enabled write permission to the upload folder. Read help file → ASP.NET Settings → File Upload.

Security R/W for IUSR and IIUSRS, but the folders are empty…\wwwroot\uploads
temp__dac98180-21b9-0904-7d2d-19cd2de309b8
myapp
x_attachmentfilename
thumbnail

Read Application Pool Identity for setting permission:
https://docs.microsoft.com/en-us/aspnet/core/host-and-deploy/iis/?view=aspnetcore-3.1