Previous query run as a query-in-query containing unsupported concepts does not draw the timeline

log into https://www.i2b2.org/webclient/
drag and drop a previous query containing unsupported patient dimension concept ( example: Asian-Circula@1@12:40:18 which has concept "demographics=>Asian") onto the group panel 1
click on run query
select option"Timeline"
Expected: Timeline to be drawn successfully bypassing unsupported concepts
If the query has only unsupported concept, then bring the user to the specify data page to enter supported concepts
Actual: application is crashing while processing the query