"I have followed the following instructions:
Click your Jira icon
Click Projects then select the relevant project
Click Reports, then select Epic Burndown
Select the relevant epic from the Epic Burndown drop-down.
You will be able to select from epics that are in projects configured for your board (via the board's filter)"
The problem is, I don't see "epic Burndown" as an option. These are the only 4 options that I see:
Burnup report, Sprint Burndown Chart, Velocity, Cumulative Flow Diagram