What you’re running into is the basically the minimum wattage that the trainer can produce, which for your trainer I’d guess is at about 90rpm cadence about 80 watts minimum; I think I read it’s because of the heavy flywheel used? But that doesn’t mean gears 1-10 are unusable. You should find that there is differentiation in those gears if you ride any large gradient hills in Zwift. Give the Radio Tower climb a try and I think you’ll see what I mean.
Agree to disagree. 
When you’re using virtual shifting, gear ratio concept exists only IRL, right? Because there is no from-rear combination.
Hence, the only way to simulate a 0.75 ratio is using gear 1 on Zwift, which is something we totally can do.
What would be your expected behaviour?
I wanted to share an update in case it helps anyone with the same issue.
I contacted Elite support, sent them this thread and Migue’s post, and asked for the ZIP file for my trainer. They provided it, and after I completed the process steps on Elite’s website, virtual shifting started working on my trainer.
One note: I did the reinstallation on an Android phone, even though I normally use the Elite apps and Zwift on iOS. I couldn’t hack it on the iOS—probably due to my technical skills (or lack thereof)—but after the reinstallation through Android, virtual shifting works fine on iOS as well.
At first I also thought that the problem was the Avanti. Until the moment when my workout ended in the middle of the hill, where I was calmly cooling down on a 10 degree climb in ERG mode, I was riding up the hill with a 90 cadence and ~60 watts. The moment I crossed the finish line, ERG switched to virtual gears and 1st gear suddenly became almost 2x stronger - 90+ watts. So, the problem is not in the Avanti trainer. Because in ERG mode it has no problem with low watts at high cadence.
I encountered the same problem with my Elite Avanti and Zwift Cog & Play. With Firmware 36 installed the virtual shifting was not possible, an error occured that my trainer firmware doesn´t support this. I desperately tried to upgrade the firmware (V37 was shown as new version on the Upgrado App) but with no success. Finally after almost sending the trainer back I checked the firmware of the click controllers in the companion app - and there was an update waiting (sic!). After installing this everything seems to work fine!
I just bought an Avanti, same problem as some here, event in v36 i have lot of issue.
I mailed them…. but is it possible to you to send me the firmware you received by mail?
Greeting,
It’s been working flawlessly once I turned off WIFI from the myETraining app
I just got an elite avanti and swapped the freehub with my own zwift cog v2 I emailed support but it’ll probably take some time for them to get back to me, can anyone who has access to the update files email them to me? Appreciate the help!
Just an update here for future potential seekers of help:
After an exchange with Elite support the resolution came through manually selecting Elite Avanti as source of power but also resistance in the pairing page. I did not have to do this on my Suito before even though it had the same zwift cog. But doing it immediately resolved the issue.