Hotfixes. December 29, 2020

Here's a list of hot fixes that we've improved:

• Fixed issues with deleting and adding empty frames
  
• Improved a continuous selection for group objects
  
• Fixed issues with the appearance of double tracks when animating materials for the icons
  
• Improved the user interface of the context menu for saving icons
  
• Fixed issues when working with favorite tracks
  
• Fixed issues when working with the key selection in the timeline
  
• Hidden signature for the particle effects.