LOL do you have the original version of siegecastle? Thats pretty weird
This happens on like 50% of maps, have you never seen that before?
There are few maps on which its even used as an advantage, since you can see player models through it, eg.: dc2 - check out the mid baller on the furthest left (red main to mid left barrel) (i think its from red side) you can see to the other main through it and has been often first picked color because of it.