The times presented concern the propagation of status values being cached after a change.
Jira Cloud does not force synchronization of tasks assigned to a given status when it detects that something has changed, so the user will be able to see the change of a given issue only after restarting the Application or clearing the cache memory.
Clicking the “Clear Cache" button invalidates the plugin cache, which forces a complete data reload from the Jira database for all boxes and all users (full recalculation of all the program boxes similar to recreating the programs from scratch). Depending on the volume of data in your Jira, it can take up to several minutes to execute while the application will not allow data editing during that time. Use it with caution as it will influence server performance and users' ability to work with the application.
Note that If a Box is not opened for more than 24 hours, the cache will be automatically cleared and a full synchronization will be triggered.
While clearing the plugin cache should correct most of the problems with showing outdated information or occasional glitches, it is important to treat this procedure as the last resort in case of unidentified problems. It should NOT be used routinely, and if such a need arises, please get in touch with support for troubleshooting.