The very first Patch for Sonic Colors: Ultimate got released, first for Nintendo Switch then across all Platforms. On the PC version it’s file size is around 350 MB. It is stated that it fixes issues such as the “Rainbow Glitch”, which actually caused problems for photosensitive Gamers. Make sure to update your game now.
If you have the Epic Games Store version here you can find it’s version id:
please can i play sonic colors