Ok, so it hasn't gone away, they just don't come to you anymore. They just hide away somewhere and look miserable. 😢 But only when they're standing up. And only sometimes.
So - I wasn't aware of this before, but in the previous CWE version, Chao could walk up to you after they've had a cry and try to get your attention. It doesn't come up in the newest version since the Chao Animations code had an overhaul, but it might just be me, or it'll show up again in a later version.