Suspiciously everything worked when changing to floats

tools/mapcompile/helper.py

@@ -1,5 +1,2 @@
 def floatToFixed248(value):
-  # Converts a float to the fixed248_t used internally.
-  high24 = int(value) & 0xFFFFFF
-  low8 = int((value * 256.0 - high24) * 256.0) & 0xFF
-  return f'((fixed248_t){(high24 << 8) | low8})'
+  return value;