A user going by the name of drober started a thread on the Announcements Ticker forum complaining that non admin users were unable to view the full text of announcements by using the “Read All” link. On his site, they would be prompted to login, but non admin accounts still could not see the content.
This is because the plugin sees future posts as active announcements. This is by design so the announcement can automatically when expire when it reaches the scheduled date. However, WordPress does not allow non admin users to view future posts. This never showed up in testing because I always used a logged in admin account.
The fix was to hook into the one of the save_post actions and change the post status from future to publish if an announcement is saved. I also had to take out the condition that the plugin only selects future posts for display.
For the full discussion, see the forum support thread.