Whenever I throw an ender pearl down a soul sand bubble column it slowly starts to drift out. Before in 1.12 you could throw an ender pearl straight down a soul sand bubble column and it would bounce up and down in the exact same spot. It's now 1.14.60 and im still having this same problem. One of my redstone contraptions took advantage of this game mechanic and it's now a huge problem trying to keep an ender pearl in my bubble column. I'm not sure if this change was intentionally implemented but I assumed that it's a bug.