• Close Syntorial
• Download this: https://syntorial.s3.us-west-2.amazonaws.com/Misc/Reset.zip
  
• Unzip it to reveal a "Reset" file
  
• Move it to
  
• Mac: /Library/Application Support/Syntorial/Challenges/The Essentials/28 Repeating With More Control/02 LFO in Poly Mode/Presets/
  
• Windows: C:/Program Files (x86)/Syntorial/Resources/Challenges/The Essentials/28 Repeating With More Control/02 LFO in Poly Mode/Presets/
  
• Restart Syntorial and try again