We need to make some edits to this dashboard so we can present it in a meeting on Thursday, so I am trying other ways to get around this.
In case this may help you debug this issue:
I have made a copy of the dashboard using the save as command and when I try to share it out I get this message:
It counts up to 818 and then just sits and eventually the Chrome window gets the "Not enough memory to open this page" message, with Error code: Out of Memory.