CARP Status Widget doesnt update Status
Testing on vers 2.4.3a20180224.1921:
The CARP Status Update widget doesnt update the Status "Backup/Master" .
Manually updating the Dashboard works.
Not all widgets update automatically and this is one that does not. Carp status is not something that typically changes on a frequent basis. Currently you need to reload the page to see the current state.
You could always file a feature request on Redmine if this is something important to have.