[SOLVED] WHAT THE DUCK?
When I try to make a PTI map, and compile it, it will load... and I'll start in the elevator. Now, that isn't supposed to happen, but it gets worse. When I walk up the stairs, the door won't open. okay, faulty trigger, I can go and try to fix that in Hammer. BUT NO! IT GETS WORSE! when I noclip to the test chamber, I find that the entire entrance area with the vgui_screen is MISSING, I checked my instances and all 7 of the entrance chambers are as they should be. Just nothing spawns there, theres a door frame and there are the brushes that encase the room, but nothing else. I've recompiled, but nothing happens. I REALLY don't want to verify my cache, since it undoes all the changes I've made to my instances (which is quite a bit). Wtf is going on? Where did my entrance door go? Can anyone help?
This really sounds like a problem you brought on yourself. Back up your instances and verify the game cache. If that works then you can try narrowing down what changed instance caused the problem.
Portal 1: Portal Pro, Resurrection, Dyad, Rexaura
Portal 2: [Coop] Electrophobia, [PTI] EotM Collection, [SP] Aperture Halloween
This really sounds like a problem you brought on yourself. Back up your instances and verify the game cache. If that works then you can try narrowing down what changed instance caused the problem.
All I've done to the entrance instances are.. well, nothing to any of the entrance rooms, and I added a trigger (that enables a game_text that says "Hello!"), and a turret to the elevator (defective turret). It was working last night, too. And I haven't changed anything since then...
in fact, I published a map last night. Its on the post your workshop maps here page. That was the last thing I did before I went to bed, and it works just fine.
okay, bad news. Its happening in ALL my maps now, I decided to work on Hammer heavy duty super painting super paint (also on the workshop map page), and when the game loads the EXACT same thing is happening. all the other instances are loading, and the instance is there in Hammer, its just not showing up in game!
Oh, and Mevious, I can't back up the instances as far as I know, since its a change to the PTI's pre placed cube (and elevator) instances, and I'm not sure how I would replace them so it would load the one I want, and not the normal ones.
I've seen your instances, and they have no use. Might as well let them disappear, who needs a defective turret in an elevator?
My steam profile: http://steamcommunity.com/id/tanger2b/
My speedrun and blind run filled youtube: http://www.youtube.com/user/portal2tenacious
I need maps to play and rate! Post links here: http://steamcommunity.com/groups/Portal2STUD
Lights, catwalks, cameras, and re textured stairs are what I want to keep.
Just redo them.
My steam profile: http://steamcommunity.com/id/tanger2b/
My speedrun and blind run filled youtube: http://www.youtube.com/user/portal2tenacious
I need maps to play and rate! Post links here: http://steamcommunity.com/groups/Portal2STUD
This really sounds like a problem you brought on yourself. Back up your instances and verify the game cache. If that works then you can try narrowing down what changed instance caused the problem.
why not listen to Mevious, its the only way you're going to fix this problem.
tbh it may just be an engine error. who knows
just stop whining and do what I quoted 
You have been editing your instances heavily but seem unprepared to believe that they may be contributing to the problem...
Seriously?
Seriously?
How would changing the model of a light strip or adding a turret to the elevator cause an instance not to load?