HI
I am not sure if this is a bug. I am using the same dataset and i am "appendcols" them. I can see the visualization - but i cant interact with the screen and it freezes.
index=mlc_test sourcetype=MX_TIMING2 source="mxtiming_664200_mx3844vm_19272.log" splunk_server=dell424srv ACTION_MX_TIMING="Limits" | timechart span=m max(Total_Time) max(RDB_COM_All_Services) max(MX_Session) | appendcols [search index=mlc_test sourcetype=MX_TIMING2 source="mxtiming_664200_mx3844vm_19272.log" splunk_server=dell424srv ACTION_MX_TIMING=mxmlc | timechart span=m
max(MXMLC_TIME) ]
alt text
I don't see any reason why this search should cause your browser window to freeze. That said, I have had troubles with various browsers from time to time. Switching the browser usually solves the problem. I have sometimes found that clicking on the Splunk logo resets the problem as well.