SGPLOT colorresponse gradlegend scale

[Vic3]

How to re-scale color response legend in SGPLOT? This is what I'm getting:

The "solid" values are in the range of 0 to 1, yet the procedure generates color scale from 0 to 300, such that variation on the graph is invisible (i.e. all dots are green). I made a number of these graphs for different data sets, and the legend changes, but the range is always 100-500 times wider than needed.

scatter x=ntod2c y=ntod1c / colorresponse=ntos2w
		markerattrs=(symbol=CircleFilled size=9)
		colormodel=(CX99D594 CXFEE08B CXFC8D59 V000FFFF); 
		gradlegend / title='Solid, mg' titleattrs=(color=black family=arial size=10);
		xaxis min=0 valueattrs=(color=black size=10pt); yaxis min=0 valueattrs=(color=black size=10pt);
	lineparm x=0 y=0 slope=1;
	xaxis label="Liquid 2, mg/L";
	yaxis label="Liquid 1, mg/L"; 

Interestingly, I ran the same script few months ago and the legend optimized automatically. Now it's giving me trouble. 

[Ksharp]

Can you post your real data to replicate your problem ?