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Can’t adjust speed on Autopilot

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When autopilot is engaged, I can’t adjust the speed using the scroll wheel or touchscreen. My work-around is to disengage AP and then reengage it at the desired speed. This is a new problem—used to be able to adjust the speed just fine. Has anyone else experienced this?
 
When autopilot is engaged, I can’t adjust the speed using the scroll wheel or touchscreen. My work-around is to disengage AP and then reengage it at the desired speed. This is a new problem—used to be able to adjust the speed just fine. Has anyone else experienced this?

I had the same problem on 12.5 yesterday. I didn't do a reset on the highway (wife freaked out the last time). Today I was granted 12.6. Will see if it happens on this SW version tomorrow.

ECTO-1
 
When autopilot is engaged, I can’t adjust the speed using the scroll wheel or touchscreen. My work-around is to disengage AP and then reengage it at the desired speed. This is a new problem—used to be able to adjust the speed just fine. Has anyone else experienced this?

Something happened with recent upgrade on this. I also noticed if I changed my charging amperage it showed on screen but did not actually change. It continued pulling 48 amps while showing 30. Once I did a soft reset all was back to normal.