Need help with adding XBI to chart

[treewind]

I normally trade Biotech stock like MRNA and would like to add XBI to the same chart as MRNA. I added 'Comparison' indicator and selected 'XBI' as second security. But on the chart, I don't see the XBI get plot. This indicator seem to work if I select 'SPY' instead. Any ideas on how to put two difference security on same chart?

 

[merryDay]

@treewind are you referring to this indicator:

 

[treewind]

Yes, exactly. When I 'reset chart to default' then it works fine. There seems to be a conflict between my existing SET of Study and the Comparison indicator. I probably will try to remove one indicator at at time to narrow down the conflict.