I launched the steam version of portal to test an idea I had, but shortly closed it. I went to the Source Unpack to do some runs, but when I tried save glitching, it didn't work, so I checked the version, and and it said 5135 (Steampipe) although it should've said 4034 (i think so), i launched 3420 and it was on build 3420, but Source Unpack just went to the Steampipe.
source unpack is build 5135, you likely just did whatever saveglitch incorrectly. 4034 isn't a real build of portal.
An update has been released for SST that adds the command sst_portal_resetisg. This command removes Item Save Glitch and is to be used in place of restarting the game. This is a temporary solution while a more robust and legitimate one is developed.
The reasoning for allowing this is to make the ne