Graphs do not show Broken line but do show data

Has anyone ever been in this situation,the graph-config as show in figure…this is too strange. Please help

:sleepy:i can not resolve it

datasource is clickhouse, i can see data in table, when i change to graph, the Broken line can not show

hello, have you tried adding minimum and maximum value for Y-axes and also adjusting the time range?

try change the unit setting to percent(0-100)?