Requirement - what kind of business use case are you trying to solve?

Surfacing error spans in large, collapsed traces.

Problem - what in Jaeger blocks you from solving the requirement?

When a collapsed span has an error indicator, it is unclear if the span has the error, or if it belongs to a child row.

Expanding the row then causes the pill to move, which in turn may also need to be expanded to find the actual error span.

This can happen quite a few times.

Three clicks and it's still not the error span. A bunch more clicks and...

Proposal - what do you suggest to solve the problem or improve the existing situation?

Error indicators for bubbled errors should look different from error indicators for an error on that span.
Clicking on a bubbled error indicator should update the UI find to the spanID(s) of the errored span(s) and then scroll to the (first) error span.