Crashes on startup with the message that it is only compatible with MC 1.16.2

You can manually fix this by opening the jar (with an unarchiver like winrar or 7zip), go into META-INF, then in mods.toml, find where it specifies 1.16.2 and change it to 1.16.3. I've tested it and so far it seems to work fine

Sorry for the delay. I will upload a new version to curse as soon as possible.