What am I not seeing event fields in the summary index, from the scheduled report feeding the summary index?

[Glasses]

I created a scheduled report and it parses the fields in key-value pairs nicely.
I enabled a summary index and I see the report feeding events into the summary index.
But I don't get all the key-value pairs parsed out like in the report.
Doesn't the summary report natively parse fields?
Or do I have to specifically table fields?

Thanks