I didn't realize this back when the SteamPipe updates first hit, because I was already using my D drive for map backups and didn't want both copies of all my active maps to be on the same drive. But lately updates have been giving me "disk error" messages with no known cause, so I decided to try migrating TF2 to my secondary SteamApps folder on the D drive. Little did I know, that's not allowed! Yes, folks, for some reason, even after all the trouble they went to and caused making TF2 SteamPipe compatible, one of the major advantages of the SteamPipe system still does not work with it. It's not just me, right? This is a real issue that affects everybody?