No uncrossable green on the map. Saw the bit of tape but just ignored it, there was no reason for it to be there.
Albeit I came from the stairs side so didn't see the other side of the wall.
There is one uncrossable green (other than olive green). Everybody should know it!
I was unsure about 12 too. I read it as an underpass beside a building beside some dark but passable green.
I have to get myself dsq too...