If you're using the Box Plot viz at https://splunkbase.splunk.com/app/3157 then it's an archived app that probably is outdated and may have compatibility issues. Consider trying the box plot viz ava...
See more...
If you're using the Box Plot viz at https://splunkbase.splunk.com/app/3157 then it's an archived app that probably is outdated and may have compatibility issues. Consider trying the box plot viz available in https://splunkbase.splunk.com/app/5730. That said, does the time field have values greater than 20? If so, the lack of a default condition will cause the case function will set total_time to null, which might generate the "trace 0" graph points. | eval total_time=case(time<= 8, "8", time<= 9, "8~9", time<= 10, "9~10", time<= 11, "10~11", time<= 15, "11~15", time<= 20, "15~20", 1==1, ">20")