The rain doesnt play sound and show particles in the ground only on certain blocks (transparents like leaves or glass). also the rain effect (see images) goes throught blocks and it have wrong render (see images again)
HOW TO REPRODUCE
/weather rain
You can see how rain turns black at certain distance and have a very strange render. also swin and the rain can still be seeing traspasing water blocks
Please put only one bug report in each ticket. It is very difficult to keep track of bugs when they are not in their own tickets, and it is easier for you to make multiple tickets than for the mods to separate them.