Long path support in Net.Framework 4.7.2 and Windows 10

Question

To solve the problem of limiting paths to 255 characters, the following was done:

1. Windows 10 2004 includes "Enable Win32 long paths" in the "Local Computer Policy".
2. In the registry branch: HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ FileSystem set LongPathsEnabled = 1
3. Created a project in VS (Net.Framework 4.7.2)
4. Added manifest file (app.manifest) including longPathAware.
5. The fragment <AppContextSwitchOverrides value = "Switch.System.IO.UseLegacyPathHandling = false; Switch.System.IO.BlockLongPaths = false" /> is added to App.Config

But PathToLong exception still occurs when working with System.IO