Troubleshooting Tweet Marker Syncing Issues (Mac & iOS)
My timeline position isn't getting synced - why?
There are a couple reasons why your timeline position might not get synced:
If Twitterrific has trouble communicating with either iCloud/Tweet Marker or the Twitter server it will be unable to save your timeline position.
If there are too many new tweets when you refresh, then the tweet at your saved position may be too old to show up in your timeline.