Barely a bug IMO - Valve wanted an invisible wall to block players from being able to skip a small environmental puzzle, but invisible walls are a lazy solution. If the player can find an alternate route to climb up into the pipe, more power to them I say.
Barely a bug IMO - Valve wanted an invisible wall to block players from being able to skip a small environmental puzzle, but invisible walls are a lazy solution. If the player can find an alternate route to climb up into the pipe, more power to them I say.