It is written in the description of the download maybe that it is buggy.
I understand that, but surely it would be an easy fix considering all it takes is a list of coordinates?
Have you tried this mod? It says it changes the spawning points, so it might fix your issue. I never tried it, though.
I have in fact tried that mod, and it seems to add more golds as stated, but does not fix some of the spawns inside of buildings.
I'd quite like to know how the game uses these mods to determine where the gold spawns, if I'm correct it uses only 'multicopwaypoints.csv'? I have tried removing the gold mod you suggested and deleting the file from the core mod, but the gold still spawns properly. Does the game use anything else?