Emojis not displaying properly in macOS Messages
When I send or receive emojis using my Macbook Pro's Messages app, they are not displayed properly in the main Messages window. However, they do appear normally in the message previews on the side of the app.
The "Apple Color Emoji - Regular" font is installed in my macbook. I do quite a bit of graphic design so I'm not too excited about doing Restore Standard Fonts in Font Book and having to reinstall all my fonts, especially since that is not a promising solution at all. The standard font is still there and working, and I can browse and send emojis just fine; it appears just Messages' display of these emojis is broken.
I've only been able to find one other instance of this problem, which was in this post: Question Mark Instead Of Emoji In macOS M… - Apple Community
However, that user's solution of changing Messages' font size did not fix my problem, and there were no other comments on that post. So I'm here asking for any help.
I've got a 2017 MacBook Pro running Mojave 10.14.6
MacBook Pro 15″, macOS 10.14