Forcemovement issue with sparkling pool in mage arena

What I did: Got a spare god cape and took the sparkling pool back.

What I expected to happen: I jump into the pool, it then plays the water splash animation, and it then teleports me to the other end in the main cave.

What actually happened: Game played the water splash animation, teleported me to the other end of the pool, and then force-walked me back to the pool I jumped into, walking me right through the walls of the cave.

IDs of related NPCs/items:

2009-era source (if relevant):

Screenshots or video: 2023-11-21_15-45-19

LIVE SERVER username affected by this issue: player name

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