007 First Light update 1.2.1 fixes mission blockers, crashes and presentation faults in the current campaign build. PC players should install it before diagnosing a save that stopped progressing.

007 First Light official artwork
Update 1.2.1 focuses on stability and campaign progression.IO Interactive / Steam

Path tracing is separate from the fixes

The recent path-tracing option is an optional visual feature with a large performance cost. It is not required to receive the mission and stability repairs in 1.2.1. Players troubleshooting crashes should return to standard lighting and a stable frame-rate target before testing the advanced setting.

James Bond in a 007 First Light mission
The patch is most important for players stopped by a mission-state problem.IO Interactive / Steam

Keep the current save backed up and verify the patch version before replaying a long mission. The update improves the current state of the game, but hardware-specific stutter and driver problems can still require separate PC troubleshooting.