Workout Errors

I like many of the recent updates, but…with regard to Workouts, Zwift no longer allows me to choose a route. This is a problem because workouts use ERG, so speed up hill recording for example is compromised. I used to always choose the Watopia Flat route so I knew any PRs etc whilst working out were not correct. Thus all my other rides and races would reflect 100% elevation and true performance. SO PRs on other routes when I work out now are wrong which I find upsetting as I’ve achieved level 47 with legitimate riding except Watopia Flat Route