I think this might be a possible bug, maybe it's already been discovered.
I was playing on Tiger's speed blast (and sometimes happens to me on bugfarm fortress as well)
When I 180 going fast, then right after turning adjust myself so i am grinding immediately, there are times when I actually go through the wall i am trying to grind, almost like the server didn't see my keystroke to turn parallel to the wall (cycle goes straight toward the wall) and hit another wall, should there be a wall there to hit. Maybe it's something artificial that I'm just seeing because of lag, but it happens way too often for it to be that I think.
bug in current stable version (2.8.2)
Sounds like the old bounce bug that still happens every now and then. It was fixed, once upon a time, and people wanted it back. 
Is it basically that you're grinding a wall, then you 180 towards that wall to go down the tunnel and instead you're outside the tunnel, heading the direction you expect, and there's a break in your wall?

Is it basically that you're grinding a wall, then you 180 towards that wall to go down the tunnel and instead you're outside the tunnel, heading the direction you expect, and there's a break in your wall?
Check out my YouTube channel: https://youtube.com/@davefancella?si=H--oCK3k_dQ1laDN
Be the devil's own, Lucifer's my name.
- Iron Maiden
Be the devil's own, Lucifer's my name.
- Iron Maiden
Aha, I see. This is the same bug being discussed in another thread, and the reply I just wrote there was intended for here. 
If it happens on bugfarm, yell BUG when you see it.
That way z-man can take a look at it and the recording and hopefully fix it.
On the older servers, like Tigers (which is still running 0.2.6), you're just going to have to live with it.
Umm, this is the phasing bug z-man's trying to track down and smash once and for all, so if you can duplicate it at will, you might go find as many different ways to make it happen as you can on bugfarm and yell BUG for each one (with a description of what's going on, of course).

If it happens on bugfarm, yell BUG when you see it.

On the older servers, like Tigers (which is still running 0.2.6), you're just going to have to live with it.
Umm, this is the phasing bug z-man's trying to track down and smash once and for all, so if you can duplicate it at will, you might go find as many different ways to make it happen as you can on bugfarm and yell BUG for each one (with a description of what's going on, of course).
Check out my YouTube channel: https://youtube.com/@davefancella?si=H--oCK3k_dQ1laDN
Be the devil's own, Lucifer's my name.
- Iron Maiden
Be the devil's own, Lucifer's my name.
- Iron Maiden