Valve can be great, but sometimes, they cane lazy or not notice some mistakes. So far, I found two mistakes in official maps. The first is on Upward by BLU's second spawn (in the tunnel). As you can see, I'm stuck on the post above the ground. I just jumped up. You cannot move once you get up here. I found this by backstabbing a bot that was stuck. In Hammer, the player clip is flush with this post, but it extends farther out on the post to the right. The second one I found is outside the spawn on ALL versions of Sawmill. This one is more obvious, but it's a fun spot to sit. I rocket jumped up to here. The reason this one happens is more obvious. In Hammer, you can see that the ledge I'm on sticks out. Maybe this'll become a new Engineer spot to relax on the ranch. If you guys find any bugs, glitches, or awesome spots on Valve maps, feel free to post them below. Crash, their clipping will drive you nuts.