Hi,
Do you see the notes when you activate the plugin under a single site of the multisite?
This change in behaviour is likely related to the latest update which is for performance overall. I think a multisite uses a different identifier for the dashboard page on MS. The related change which is causing this:
https://plugins.trac.www.ads-software.com/changeset/1781340/wp-dashboard-notes/tags/1.0.9/wp-dashboard-notes.php
Lines 64 and 67 are added in order to only load the plugin when on the dashboard page.
If you want to help make this compatible with MS you can give the following a try ~through FTP ONLY~
if ( is_admin() ) die( $pagenow );
Only do this if you also know how to undo it, it will completely block the admin out from being used when that code is active. Implement that on line 62, under the global $pagenow;
.
This will show which ID is used on MS for the dashboard page, which will then need to be added to the plugin in order for it to work.
Make sure to remove the code when you’ve copied/noted the ID of the dashboard page (be sure you’re viewing the dashboard page, otherwise it will display a different page ID).
Let me know!
Jeroen