Client crashes when walking on blue skies dimension lava with Ra's Step ring equipped.

Blue Skies: https://www.curseforge.com/minecraft/mc-mods/blue-skies/files/3385608

crash-2021-07-14_02.38.04-server.txt

This is the fault of blue skies for tagging non fluid blocks as fluids. I have already commented on their issue tracker.

Actually it is kind of atum's fault, I checked the code a bit more carefully and it turns out that any block can return any fluid, which makes it a bit of no ones fault.

There's a method that gets the Optional property value, if that helps. That way it also accounts for other blocks that might do something similar to what we did.