I logged in to my 2nd day of a fresh SMP and my character spawned in AS a demon cow. I'm on fire, I die fast, I'm setting everything on fire and the internet can't tell me how to fix it... I've never seen anything like this before, i didn't log out this way, i don't understand why i'm suddenly a demon cow character....

Affected versions ("latest" is NOT a version):

• Minecraft: 1.12.2
• Forge: 1.12.2
• AbyssalCraft: 1.12.2

Latest log file for when the issue was present:

[pastebin/gist/etc link here]

Holy crap I figured it out, some weird hotkey "["

This isn't a feature of AbyssalCraft. Whatever morphing mod you might have installed would be the cause as to why you spawned in as a mob, and not a player.