Do you mean the planner doesn't show the same timetable? Then you should both check if there are any app updates. There was an update a few days ago. Also check if the planner optons are set the same.

In addition, you should not use the Rail Planner app to plan. It's not complete and does not get enough updates to be reliable. It's better to use the operators’ own websites/apps and for international planning, use the Deutsche Bahn planner or the DB Navigator app.