Lighting/texture issue

So I’ve been working on my map and I noticed, that after the latest update, when I compile and launch a map, most of my props seem to not have a texture and some shadows are f’d up:
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the shadows on some walls are glitched aswell, but if I increase my distance from it, it goes away partially:
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But some props do actually retain their textures:
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When I go inside a wall, a bright “thing” spreads on my screen:
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Some of the shadows actually flicker, and I have noticed, that they flicker in a similar pattern my flickering light does. Could it be the problem here?:
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But most of the world geometry shadows have stayed normal. I have checked my map, there are no leaks (I even made another box around it to make sure). Is anyone else having this issue?

So… has there been an official word from anyone from valve about when it’s going to be fixed?

Nobody really knows, someone from Valve said there will be info next week. but again, it’s Valve.

So basicaly, I’m forced to ‘take a vacation’ from mapping for a couple of weeks. Thanks Valve!
(Can someone lock/delete this topic now, since it’s no longer needed?)