When I press M the map shows up zoomed out showing both continents, very small. The same happens in the minimap -- minimap is docked, and continent shows (again, small). Autosize is doing nothing.

I started using Carbonite yesterday and it was fine until now.

Auto Scale doesnt work becouse u have it disabled.

Should be like this:

Also u can always right click map: Restore Map Scale then Save Map Scale:

I tried it with autoscale on and off. Restore map scale was making no difference either. When I have a chance today, I will remove other add-ons to see if there's any conflicts.

Yes, check with all other addons disabled.

Indeed, it is a conflict. The only change I made yesterday was updating ElvUI. Prior to their update, I had managed to get the two working together rather well. Now I can't. Not your fault or problem. =)

Also using ElvUI no problems... It might be ElvUI+Carbonite+OTHER addon ;)

Fair enough. I do have over 50 addons.

Do you have the Carbonite map replacing ElvUI's maps? I tried replacing and coexisting (Alt+M for Carb stuffs).

I use Carbonite Map as main map addon with combined Minimap and in ElvUI disabled Minimap integration. Then if i need i use Alt+M for Blizz map.

Does Carbonite put quest data in the tooltips? I wasn't seeing it, but that could be yet another conflict. haha

Not yet. Questie does.

Yes, and I've already found that Questie doesn't like Carbonite. I wish they all could just get along. ;)