[Anti-Cheat Report] Anti-Cheat for Swimming Up Waterfalls

In Game Name:

VerdantBuckle34​

Short title for your report:

Anti-Cheat for Swimming Up Waterfalls​

What client are you using:

N/A, strictly vanilla Minecraft​

Which server were you on:

VMR​

Which world were you in:

I think the cave was a Savannah biome, but I'm not sure how to answer this.​

What time did the issues and/or kick take place:

Most recent was 11:02 AM AZ time​

Ping on kick:

4 pings from attempts, from oldest to most recent: 23ms, 0ms, 83ms, 0ms​

Code/Codes received:

IrregularMovements​

Description of the issue:

I was trying to swim up a waterfall to exit a cave system, but the Anti-Cheat keeps kicking me out halfway up the swim.​

Reproduction instructions:

The specific waterfall in question is at (634, 0, -55). I start swimming where y is under 0, and the anti-cheat kicked in about where y = 0.
I'm holding Spacebar to swim, and my field of view is straight up to the sky
Immediately coming onto the server and going from there lets me go up a few more blocks, but still kicks me after a moment of swimming.​

How many times did you recreate this:

7 out of 7 times, each resulting in a kick.​

Video evidence:

​

 

No, it ended up resolving at some point; I managed to get out after you replied, no issues since. Thanks, Andrew!