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Damn, okay. No pressure. Let me try and create the thread now before I forget again. It was a while ago, but I have some screen shots showing (I think) that it's to do with an error in the resetting/adjusting of coords as player moves through the streaming world.

Hit me with it when you can. Always possible it isn't tunneling, we have a whole mess of other things going on here too. I'm open to more ideas.

Interkarma wrote: ↑Sun Jan 31, 2021 8:52 pm Hit me with it when you can. Always possible it isn't tunneling, we have a whole mess of other things going on here too. I'm open to more ideas.

I've done some testing and when this happens outdoors, the entire map pixel is lacking collision. The neighboring terrain seems fine and saving and reloading / restarting also restores collision to the terrain you fell through.

I've logged the collision flags and you go from Collision flags = Below to Collision flags = None when this happens.

It seems to happen more often when you travel diagonally (NW, NE, SE, SW) but I haven't found how to consistently reproduce it yet

Burt, is this happening at normal speeds or at accelerated speeds? Because at accelerated speeds, "lacking collision" is exactly what tunnelling looks like.

This can be replicated if you look at and go fast enough into a dungeon mound edge. I can easily replicate it using the dodge mod because of how it crouches and moves the player. Not sure if this is what happened to the streamer, but clearly the mounds can cause a player to clip under them and then into the void if at the right angle and speed.

Interkarma wrote: ↑Mon Feb 01, 2021 9:49 pm Burt, is this happening at normal speeds or at accelerated speeds? Because at accelerated speeds, "lacking collision" is exactly what tunnelling looks like.

Accellerated speeds (200) but I've levitated back up as I fell through and even then, I could fly around the entire 800x800m of the map pixel and pass through the ground wherever I pleased. Once I made it into a neighbouring pixel, I hit solid ground again but walking back into the offending pixel just makes you drop straight down.

If I understand the terrain system correctly, each map pixel is a terrain mesh so does tunneling make a mesh lose collision as a whole?

No, tunnelling shouldn't have that effect. That's an interesting outcome, thank you.

TalonHatesNames falling thru the floor of Castle Sentinel entrance room (just next to Prince Lhotun) while just walking/running/jumping around (0.11.3):
https://www.twitch.tv/videos/1011598631?t=7m25s

And again entering The Fortress of Chogke, Sentinel (not reproducible, worked the 2nd time around)
https://www.twitch.tv/videos/1011598631?t=22m30s

Falling thru the floor entering Castle Wayrest
https://www.twitch.tv/videos/1011598631?t=33m30s
Interestingly he tried tele2exit repeatedly but fell thru the floor again

Falling thru the floor entering Direnni Tower (on 2nd entering, after dying during 1st entering then reloading)
https://www.twitch.tv/videos/1011598631?t=2h3m25s

Between two dungeon modules inside Direnni Tower, while running
https://www.twitch.tv/videos/1011598631?t=2h20m

Yeah, this is similar to an older issue where model colliders would randomly be inactive. It was ironed out in a previous Unity update. Looks to be back again.

Thanks Pango. We'll see if this one persists after the next engine patch over game.

I completed my previous post, because he actually fell thru the floor quite a few times during that stream...

He did not restart the game, and I suppose some kind of runtime condition triggered the issue again and again