Hey I just tried to load up the ten year map on Java in 14.1 and the command blocks are broken. I tried to enable them using /gamerule enablecommandblockoutput true (or whatever it is) but it still didn't work. I'm not good at installing maps, did I do something wrong or do I need to load up in an earlier version? HALP PLZ
If you're saying you just loaded a map from 10 years ago into 1.14 without any changes, then this is because commands were changed in 1.13 and many old commands no longer work, so you'd have to either load it in 1.12 or earlier, or change every command block to the new system.
Also, never mind, disregard what I said earlier. I now understand what you meant and it should've been obvious (as command blocks are only 6 years old). If you're running into this issue in single player, I don't know what could be causing it, but if it is multiplayer, make sure command blocks are enabled in the server settings. If you are in singleplayer, please describe the issue with more details than just "broken".
Edit: Locutus, he means the 10 Year Anniversary Map that Mojang released (I think)