I currently have a forerunner 245 that has been working fine for the past 2.5 years. Unfortunately in the past week all of the sensor related data has stopped working: steps, cals, heart rate, body battery etc. and the green light in the back no longer appears. As well as this the battery drains ridiculously quickly now: 50% in 4 hours. The vibrations are also 4x longer than usual. My current software is 12.10. I didn’t have this issue before the update.