water zones geomtry loses collision randomly

can a dev please look over these water zones the amount of times i randomly fall thru the platforms is ridiculous it happens in the water event solo and the marrs ascent solo near the mob end platform area if anyone can add more details to their experiences also would help getting this fixed

Is it random, or is it after a punt from the mobs?

Happens to me in the water event heroic semi regularly. We kill the first name and run across the bridge that spawns to start the second named, and I fall through the bridge that was spawned.

It's now 7 months since the original post and this problem still occurs.

This has been an issue since BETA, actually.