The survey descriptions for a number of our surveys (notably including some of the DSS surveys and the IRAS and IRIS surveys) had an error in them that made it impossible to create RGB images if one of the affected surveys was the first of the three images. Basically we used the keyword <Scale> to describe the size of the pixels in the survey metadata rather than <PixelScale>. This misuse conflicted with the use of the <Scale> keyword elsewhere to give the default scale for the survey. In fact the actual
We will be releasing Version 3.1.6 with the updated survey descriptions. Our apologies for any problems that users may have run into.