https://wccftech.com/new-sonic-colors-ultimate-update-2-6/

Sonic Colors Ultimate update 2.6 has been deployed across consoles and PC, improving the game’s stability and more.

The release of Sonic Colors Ultimate has been somewhat troublesome with players across PC, PlayStation, Xbox, and Nintendo Switch reporting various issues, including glitches and performance issues across all platforms. Following the game’s troubles launch, developer Blind Squirrel Games and SEGA already released an update for the Switch that addressed some of the reported issues.