The Channel Box on the Mac makes me a little uncomfortable as I haven't gotten used to it, the first time I saw it, I thought I was having graphical issues lol I refreshed it like 4 times before I realized that's how its supposed to look.

If its something that's happening in all your new scenes, try switching out your prefs. If not, then import what you have into a new scene, if history is on then it SHOULD be there