Kibana TSVB doesn't display all annotations that has the same timestamp

I have a use case to show annotations of all events that have the same timestamp on the time series visualization of Kibana. The field name in interest is sale_event. When creating the annotations, I put {{sale_event}} in the row template field. However, Kibana only displayed one out of three items in the tooltip when I moused over the annotations. I'm not sure if there is a workaround or I need to modify the row template to make it show all records. Any helps & suggestions will be very appreciative.

TSVB only shows the fields from the first hit per time bucket. You can try to reduce the configured interval in the panel options to increase the change of one time bucket per annotation.