"Hey Champions, Update: We'll be deploying a hotfix for Quake Champions today that will take approximately 4 hours starting at 9AM EST & we hope to be finished by 1PM EST. It addresses the following issues:

+ Fixed an issue that caused a small percentage of players to crash to desktop when launching the game
+ Fixed mouse sensitivity only being able to be adjusted by increments of 0.25
+ Fixed issue incorrect champion showed at the profile screen. Post-match statistics are now assigned to the correct champion

Source: https://quake.bethesda.net/en/news/5FspmmWh8ckIMcIaEsisa

Note: (Discord)[22:59] tokyopunchout: It's NOT the January Update.