Steve Smith-163358 - Thursday, December 28, 2017 3:08 PM
I just tested the same and didn't have any problems with the proxy executing - always executed as the credential for the proxy account and I opened several different apps using runas a different user <credential login>
I tested this on a laptop that isn't a member of a domain. Mentioned that as maybe you have number of logins limited by policy? Did you check the security log for any entries when you execute this on the Windows 10 computer where you are testing this?
One other thing is you probably don't want a process dependent on a profile - are you doing that for mapped drive purposes? If that's the case, The files should be in a share, referenced using a UNC path.
Sue