Hmmm. I don't think it has to do with the update. I'm running the ruins demo on my Mac, and the squiggle works. Your issue may be resolved with the upcoming update, then. If you're not using the beta preview, turn it on and give that a shot. That might be able to tell you if your problem is update related.
You could also go back and check the enabled console. I've had it switch back to disabled more than a few times myself. :\
You'll need to have quotation marks around the item you want to spawn, and don't capitalize it; the only capital letters you should ever use for a spawn code are the D and S in DebugSpawn. It should look like this: DebugSpawn"meat". DebugSpawn "meat", and DebugSpawn("meat") should also work.
Ah, just noticed in your post that meat is italicized, meaning rather than the double quotation mark key, you were pressing the single quote mark twice on each side. That is most likely what's messing you up if that's what you're attempting to do in-game.