RunAs not working with file on a network share

Pretty simple issue. v3.3.8.1

I set up a script to run a few of our office programs as an admin. All of the locally installed programs (on the C drive) worked flawlessly, however running the exact script but on a program on our network (S drive) gives me an error. Here is the script:

Local $sUserName = "admin"
Local $sPassword = "***"

RunAs($sUserName, @ComputerName, $sPassword, 1, "S:\test.bat", @SystemDir)

If @error = 1 Then
MsgBox(4096, "Error", "Something went wrong, but I'm not sure why...")
EndIf

I've tried every option for the logon flag and the working directory. Does the RunAs function just not work on network shares?