Exactly two years ago to the day, I reported a weird little emoji bug with Bitwarden.
Let's say you want a password of:
(As close as possible to Correct Horse Battery Staple)
That works. Emoji are stored and retrieved correctly. You can use them with any system which supports them. But you can't view them. Here's what it looks like if you try to see your password using the Bitwarden Android app:
Yup - a bunch of emoji are replaced with ����. Ew.
I use Bitwarden, and I happily pay for it. But I wish they were a bit more responsive about fixing trivial bugs like this.