You can't use riptide trident at some elevations

Go to specific coordinates that are very high above ground, run /weather rain and try to use a riptide trident.

It doesn't work

 

Keep in mind that it only works in normal biomes, so before you reproduce it, make sure that you aren't in snowy or dry biomes.

For example, it doesn't work when the snow has some weird orange-ish color. This happens at Y=2100