Smart Trainer doesn't adjust resistance based on elevation while using "Do Course" option on Fenix 6 Pro software version 28.02

As the title and previous issues state, somethign isn't working properly on smart trainers that support resistance change based on course. I create and upload a course to my device with Garmin Connect. There is no problem in changing smart trainer option through the watch. But when I use the do course option, it tracks power, cadence and all other stuff, but it doesn't adjust the elevationnat all. Climbs are accurate before the activity starts (while they are green), but afterwards (they turn blue on the climb/elevation screen), when the training starts, the elevation profile looks "ladder-like". I am using Garmin Fenix Pro 6 and Elite Suio T smart trainer. Both are update to their latest available versions and function properly in all other aspects.