An issue has been detected in the Swarm L1B data processing chain since the production of 24 June 2023, when a processing library update was performed. The issue impacted the coordinate transformations between CRF (Common Reference Frame) and NEC (North East Center) reference frames causing the generation of incorrect B_NEC components stored inside MAG-L and MAG-H products. 

The impacted data will be regenerated and more information about re-generated data availability will be published soon.