When the colors in a Crystal report graph have been changed manually, the colours will go back to the original (default) settings when the report runs or is scheduled.
This behavior is by design.
Since the report is being re-run, the graph will be generated based on the default settings. Any Ad-Hoc changes made to graphs are temporary.
chart color graphic bar line radar gantt , 1676998 , KBA , BI-RA-CR , Crystal Reports designer or Business View Manager , Problem