After a second crash of my drone, I kept getting GPS compass inconsistent messages when trying to arm the drone. Using the mavlink console, I saw that there were 2 mag sensors listed, with the sensor # 0 being listed as the primary. To fix the problem temporarily, I simply disabled mag sensor # 1 using the Parameter modifications. So, can someone tell me why sensor # 1 would be off from sensor # 0? Where is sensor # 1 vs. sensor # 0? Is it OK to fly with sensor # 1 disabled? Is there a way to recalibrate sensor # 1 or somehow "reset" sensor # 1?