Thank you for the post. I was able to confirm with project management in regards to your issue that the process for TweetMarker is being updated to better handle timeline position. The issue you were encountering was due to caching issues with the TweetMarker as it would only be able to go back up to 800 tweets or so. If the timeline surpassed 800 tweets, the TweetMarker would not be able to retain necessary position. This process will be enhanced and updated for users here very soon. We apologize for any inconvenience. If you have any further questions or issues, please let us know.