My created maps don't show up in the map list

[Aber Purchai]

Hello. If anyone can tell me if I'm missing something or if I did something wrong, I'd be really grateful.
I have my first map made. It's called Builder_Mountains. Inside Blockland -> Addons -> Map_BuilderMountains is the following:
Builder_Mountains.mis
Builder_Mountains.ter
Description.txt (Just a little info on the map)
I started a new game to see if my map showed up, but it didn't. Plz help me

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[Aber Purchai]

OOPS nvm! I actually found out that it became a second Flatlands, but it is my map. Sry. I'll lock the topic.