I am having the same exact problem on my Garmin 1030 after the last update. Target Power now blank. In reading this thread it seems there is some confusion on what we are complaining about, including the folks from TrainerRoad. TrainerRoad provides specific instruction on how to set-up a custom Garmin screen, in their words, “that most closely relates to doing a workout on TrainerRoad.” Those instructions are here:
It is the very “Target Power” that TrainerRoad tells us to use that is no longer functioning going on three weeks. It is not the 3s or instantaneous power that Ivy is suggesting an alternate to. I suggest TrainerRoad read their own article and see if the Target Power you tell us to use works on the latest Garmin firmware. The 3s power works fine. It is not an issue that we don’t know how to properly set-up a custom screen because the custom screen was working fine until the update. I called TrainerRoads weeks ago to report the problem and gave a link to the Garmin forum where other TrainerRoad users are complaining.
Clearly based on the number of users here and many in Garmin forum there is a problem. Whoever “tested” it there obviously is confused since its not instantaneous power that you tell us to use, it the target power we need to try to achieve and which is provided by your workout files. The target data in your workout file is no longer being displayed by Garmin. It’s broken.
Not having this data field working is makes using outdoor TrainerRoad workouts very difficult to follow, especially if you are doing a lot of intervals because without the Target you have no idea what interval you may be in and have to keep swiping back to the Garmin Workout Screen to get the target interval power then swipe back to TrainerRoad custom screen which contains other essential info not shown on Garmin’s Workout screen like 3s power and heart rate.
Therefore it is recommend you reread your article and have someone retest the Target Power field given there to see if it works on the latest firmware. If there is another field we are supposed to use to get the Target Power or a work around please post here and update the instructions at the link above.