Invisible bridge

Welcome, i have problem in server because in couple of weeks when i came to ICC i don't see bridge and i can't enter to another peoples from group to finish ICC, im falling out of map, and any warlock need to summon me or all of group need start fight then teleport me too ballon. So i don't know what happend i deleting from folder WOW/cache/WDB, and still doesn't working, reloging also nothing. What i can do?

You probably need to turn up the graphics.

What bridge? Show a screenshot or video.

Probably corrupt client. Graphic settings don't affect collisions.

If I understand the text right, they don't have the ramp to ICC's Gunships. If they follow others he just falls from map (and needs to be summoned).

Get a clean client (preferably through Warmane).