I have my car set to Standard for regen braking. This morning, I unplugged the cable, planted my foot on the brake, flipped into drive and took off. A surprise happened as I approached a stop sign: The car barely slowed. Hit the brake. I checked the driving screen and standard regen braking was active. I tapped low regen then standard. Resumed driving. Low regen only. What the heck? I pulled over and stopped. Put it in park, exited and the car turned off. Got back in, resumed driving, but still low regen only. I had a 70-mile trip to LA to do, so I took off, using Autopilot. An hour later, I exited AP and noticed standard regen was finally working. I made a few stops at various shops, and when I resumed driving, the car remained in standard regen. That was a little weird. Has that happened to anyone else?