Close TweetCaster completely and reopen it. This will force the app to authenticate. To do this, close the app. Then double-click the iPhone button to show your recently used apps. Long press on TweetCaster icon until a “-“ button appears in the top left hand corner of the icon. Click the “-“ button to close TweetCaster completely. Relaunch TweetCaster.
When I log in with my Twitter account, the app gives me an oAuth authentication error and shows no Tweets.
