Hi Brian,
I'm seeing exactly the same with a fresh install (installed yesterday) of SEPM 12.1 RU1.
Remote push never completes (launched from the common tasks list on homepage / new package deployment / etc...).
If I try to export a package (as per how we used to do it in SEPM11.x) and select the 'Progress bar only' or 'Silent' options in my Install Feature Set I still only get an interactive install when running setup.exe.
(Edit: I have never seen the export process finish as I get bored waiting after 30 mins so go off and do something else. When I get back the console has locked itself.)
Here is an excerpt from the Setup.ini included with the silent package I exported (I de-selected 'Create a single .EXE file for this package' so I could see what was going on):
[Startup]
CmdLine=/l*v "%TEMP%\SEP_INST.log" IDCENABLE=0
I would expect to see see /qn in there somewhere...???
Anyone at Symantec seeing this???