Project freezing when changing MapSize Parameter

[Brandt-J]

Hey,
first of all thanks for this amazing project and for putting it up here to experiment with it.

I wanted to test how far I can wind back the performance parameters while still having a decent look. ( Otherwise it's overkill for my project)
When changing the "MapSize" to anything smaller than 1024x1024 the project freezes, however. I have to kill the godot editor, but also when I reopen the project afterwards, the engine just stays in a frozen and non-responding state :/

I am using 4.3 stable godot version.

Any help would be appreciated :)