We have two main SCCM site system servers, and all of a sudden (everything was working before, no change) the applications would not distribute to the DPs.
distmgr.log:
Snapshot processing content with ID 16781461 ...
The source directory \\sccm02\Packages\ doesn't exist or the SMS service cannot access it, Win32 last error = 5
Failed to take snapshot of one or more contents in package 00239
I tried granting Everyone full control for both Share and NTFS, and granting the site server computer account full control, still the same issue. I could access it manually w/ the UNC path and read/write/delete all of its contents.
If I copy the folder to another server and point it there in the Application, it distributes the content to DPs just fine.