PROC SGPLOT

[ANON4]

Hello.  Can PROC SGPLOT be used in a SAS stored process?  For example, the code below runs fine on SAS Enterprise Guide but when I try to use it in a stored process I get a blank rectangle where the chart should be and an error that reads, "STP: A failure occurred in the Execution Context post processing."

proc sgplot data=have;
pbspline x=year_num y=unique_count / group=del_method datalabel=unique_count;
yaxis min=0 max=10000;
run;

[ANON4]

UPDATE:  I successfully produced the chart with a stored process by changing from "Stream" to "Package" result capabilities in the "Execution Options" section of the Stored Process Manager. I would really appreciate it if someone would share their insight as to why this change made a difference. Thanks!