I would like to remind community that Garmin has another long standing error.
There are various running official courses for half and full marathons which are going over bridges. Like famous NYC one for example.
Having elevation drop to river level instead keep bridge elevation makes it useless for creating PacePro strategy.
Well I cannot understand if Garmin is using real elevation data it can not use data for bridges at this point.
Or give us possibility to "flatten elevation course" where we can see it is incorrect.