I noticed that particles in my 3dApp started acting strangely after today's client update. If I re-add the particle effect, it looks like it's supposed to while I'm in the app, but reverts when I return.
Also, I have 2 different effects and they are weird in different ways. One seems to be emitting particles from a straight line with no depth. The other seems to have either less vertical velocity or more gravity applied to it. It used to toss particles up and they would fall (like a fountain or sprinkler) and now they just rain down (like a shower).