Hey, this Update started with a rework of the map Playa Escondida, but I ended up solving the stairs problem, so here is the full patch note :

• Playa Escondida Rework
  
• New animations and system for ascending and descending stairs
  
• New Raycast system to better understand the characters environment
  
• New IK system to avoid clipping through the terrain
  
• New Tricks, Cork and Full Semi and Shuriken Cutter Semi Variation, Quint Full, Catpass
  
• Fixed the double full punch not validating the tutorial
  
• Fixes on the climb up system
  
• Fix on the quick start mechanic when clicking on the left joystick
  
• Removed default global fog volume for better looking weather, performances, and used local fog volume when needed
  
• Fixed skinny jeans mesh hide asset, underwear clipping through the jeans
  
• Fix water collider height not matching the water level on the top of playa escondida

Hope you will have fun, let me know on discord if I introduced new bugs, it shouldn't be the case but it can always happen ;)