Very odd it failed to parse the map files and choked on `double.TryParse`:
I'm running on windows 10 64-bit, and godot should be packaging the game as a dotnet self contained app as I understand it, so it should not be failing due to some kind of runtime issue. Although the string interpolation in your console logs is also not working which is also odd. Still looking.
https://github.com/awesolabs/spess-marshal/blob/main/Core/Parser.cs#L543
var valid = double.TryParse(s: strval, result: out var f);
if (!valid) {
error = new Exception(message: $"failed to parse float from '{strval}'");
result = "";
return false;
}
result = f;