Firmware 3.80 spikes and drop-outs

Well I re-enabled auto-zero and I am still not getting the same problems as before. It's noticeable that when I coast, the cadence value sits at 0 when before with the problems it would display a dash "-". Looking at the ride data from the last 3 trouble free rides, the max power values are all as expected whereas before I was getting ridiculous numbers like 2000-3000 watts for the max. I haven't touched the batteries so I am at a loss to explain why the pedals are now working as well as they were before the f/w update. I can only guess that I have somehow reset something when I was messing around with auto-zero on and off.

Outdoor ride this time, away from potential radio/wifi interference.

Worse than ever.  Highly unsatisfactory:

Thanks for keeping us updated. Guess I'll be holding off from applying this update, although I was looking forward to the fixes to the problem with spikes. 

And ride 2 for the day, also outside, several hours later

Hey I've been facing the same issue after updating to 3.8 firmware: Vector connected at the beginning of the ride then spikes and dropouts for a while and then completely disconnected. Before I was on 3.60 and everything was smooth.

At first I had troubles updating to 3.8 it kept on failing from my Edge 520, I switch to mobile app and it was updated after couple of retries. 

Yesterday I was on a ride and things are back to normal! Here's what I did:

- while Edge 520 was connected to Vector I removed batteries from right pedal (to see the alert it's disconnected), then removed from left. after a while I put batteries back on and spin crank to activated ti

- using Edge 520 I did angle reset

- then I went to mobile app and removed Vector from devices

Not sure if his helps anyone here but I thought I share since it looks it helped me.

Really strange. I did not have issue with my first purchased 2 sided pedals till the 3.6 arrived. Since that there were disconnections. I thought it is a co-incident. 

Now I got a brand new pedal with fw 3.6 and it can not be updated to 3.8 (failed) 

I only had occasional "right sensor missing" errors before the update from version 3.6 to 3.8 (~2 errors in 10 rides). After the firmware update to version 3.8 I had about 50 "right sensor missing" errors showing up on my Garmin Edge 1000 (newest firmware) head unit (right sensor not showing any power). I contacted Garmin support about it on October 12th and asked if it was possible to downgrade the firmware to 3.6 again. I received an email confirmation that my message was received on the same day but have not received any reply to my question yet (2 weeks later :( . 

In the mean time I have unpaired the right sensor and paired it again as suggest on the Garmin support page. I've also switched off the Auto-Zero function. No problems for 3 rides after that, so i thought that this had fixed the issue. Then yesterday out of the blue the "right sensor missing" error appeared again (about 15 times during a 2 hour ride). Very disappointed!

Similar here. Yesterday, had a spike of 2284 Watts at the very beginning of the ride. Today, right sensor missing twice - but cadence and power didn’t drop. Garmin needs to cut their losses and buy the Favero Assioma pedals and make them their own.

Recording Vector 3(v3.8) at the same time

Fenix 6X+Vector 3(ANT+) ,zero drop-outs
Edge1030+Vector 3(ANT+), three times drop-outs