JSON export issue

[tokula]

Hello

When I try to export the attached RUBE file to JSON, the ground's fixture value of "filter category bits" with value "1" gets excluded from the JSON data.

Using RUBE 1.7.3 on Windows 8.1

[tokula]

Oh... Is this because the default value is "1"?

[iforce2d]

That's right. You can see some info about each of the properties in the exported file on this page, by expanding (click on the [+] marker) the tree to expose more levels.