The cascade effects just don't appear and there is no sound either. Not sure if this issue is exclusive to compatibility with Sodium but I'm too lazy to find out lol.

Also, sometimes splashes don't calculate properly if ticks are running behind or you're on a server.

I don't know about the others, but I can summon the 'waterfall cloud' particle and see it no problem.

Have you tried summoning the particle in through command blocks? Obviously not a solution, but if it works via commands it's the issue that I suspect it to be

Only Sodium causes this issue, I removed Iris from my mods folder and tested it again, nothing changed. Once I removed Sodium, the problem was gone.

I'm using sodium and I can't see the waterfall either

This also happens with canvas, and I have a screenshot. If you look close enough, you can see the water droplet particles

It isn’t the shaders btw, it also happens with canvas standard and basic

Yea im having the same issue as well with no cascades with sodium+iris

I don't know about anyone else, but I'm still not seeing cascades with Sodium, even if I remove Iris.