Hi all,
We recently upgraded to Jira Server v8.5.5 and I can no longer edit gadgets for shared dashboards that I own. Previously, I'd click the ... link and it would me the the ability to edit, allowing me to change the filter. Now the only action available is Minimize. Note that all actions (Minimize, change color, Delete, and Edit) are available on my system dashboard gadgets. The shared dashboard is "Shared with anyone on the web (VIEW)".
Shared dashboard gadget below.

Gadget on system dashboard above.
Thanks for your help!
Teri