SUPERFLAT worlds

[Kiluminator]

I'm running a Spigot 1.8.7 Minecraft Server. (Nitrado)

There I'm trying to use Instant Reset to reload a map after palying. It's a SUPERFLAT world.
But whenever I'm adding the map into the template folder and the config, the map is empty. (There is just BedRock at the bottom of the Map)

I already tried environment: NORMAL / SUPERFLAT / FLAT / FLATLAND(S)

Nothing worked.
Pls help

[cybertiger]

Environment refers to the type of world, as such it's always NORMAL, END or NETHER.

World generator does not matter, all InstantReset worlds have a void generator for new chunks.

If nothing worked, it's probably because you misconfigured it somehow.