VSCode buildMap command produces different output than grill build

[jlfarris91]

It appears to me that when I run the buildMap command in vscode that the output map file is (literally) half the size of the map file built when using grill build. I am using the same terrain map and command line arguments. When I open the larger map in Ladik's MPQ Editor and use the Compact Archive feature the resulting map ends up being half the size - the same as the map built via buildMap in vscode.

It's very strange that the smaller output file is literally half the bytes of the larger file. When I open them both in Ladik's MPQ Editor I don't see doubles of each file or anything like that so I'm guessing some very good compression is occurring and it's just a coincidence that it's half the size.

Any ideas why this is happening?

grill build in powershell - 97,317KB

buildMap in vscode (languageserver log) - 48,657KB

[Frotty]

duplicate of #978 ?