Cannot change file extension of heightmap

Video demonstration of bug here.

Steps to Repro

[ol][li]Create a Height Output device[/li]
[li]Double click the Height Output device[/li]
[li]Set File Format to RAW16[/li]
[li]Set the filename to heightmap.raw[/li]
[li]Press OK[/li][/ol]

Result
Heightmap output filename changed back to heightmap.r16. I expected it to be what I entered: heightmap.raw.

Version
World Machine 3.build3016 Professional Edition 64bit

You have to change file extension AFTER the files get written to disk, using windows explorer. Height output saves with extension r16, but it’s just raw data dump. Rename the file in windows, and change extension to <.raw>.