The working theory is that it is resolved in the latest version, but people on mobile devices might have updates turned off so are still running an earlier version.
If you’re definitely on 1.74.0 it’d be worth letting zwift support know.

Exactly this happened to me yesterday (9/23/24) in a race (quite frustrating, I had just put in a big effort on the KOM, and 3 of us were sailing away with +10…. until they turned right at the bypass… and I did not).

It looks like these patch notes were posted on the 17th, in which case the issue is definitely not fixed.

Hi geoff,
Not really. Works like a charm for me (on 1.74, unlike some of the previous updates, which – at least temporarily – seemed to introduce major steering issues with Sterzo). Just did the Makuri Pretzel for the second time and gave them a 4/5 star rating when they asked for my steering experience.

This issue is now fixed. Zwift was able to resolve it on the sever side.

LOL. Nope, I’ve been doing serious training for bicycle racing for about 40 years and I know what it feels like when I’ve exerted myself to the point of failure. This is not that. The trainer is essentially locking up. As soon as I switch to SIM mode during the workout, I have no problem maintaining the required power; in fact, I have a problem going over the power the workout asks for. Thanks for your attempted insight but you’re not correct this time…