This looks fixed in 1.0.19, should be closed.
If a series in dataset contains only null values, colors for renderers depend on whether legend is present
The following code seems to "fix" it for me: ResourceAssignment dummy_assignment...
A simple patch.
Project start date cannot be set explicitly
And here is how it looks in MS Project 2013 (German, but that's not important' "40...
Here is the XML output of the simple program above.
Fixed duration tasks without assignees are shown as split in MS Project