cant drag clips in Adobe Rush

To follow up to all the similar responses above:  No one has stated if these clips are on the MAIN TRACK, or any of the 3 additional tracks above the main track.

• The Main Track clips will always auto-snap into a position on the timeline so as to make everything flow sequentially. (Think of those clips like railcars of train: all the railcars must be connected in order for the engine to move the whole train.) If you need a space or GAP in your timeline between clips on the Main Track, you'll need to physically "fill it" with something: another clip (like B-roll), a graphic (like a photo/slide), a transitional graphic or MOGRT (check out the Graphics panel), etc.
• ⭐ Be sure to expand your Timeline track view... If the clips are on Tracks 2, 3, or 4, they are automatically connected to the clips on the Main Track based on their position; simply LOCK the Main Track (1), and you should be able to slide all other unlocked track clips to new positions:
  
  

   

Hope this helps! (And if it does, please mark this as a "✔ Correct Answer"!)