When navigating a course during a running activity, both ATA and ETE valus are absolutely unreliable.
I have a lot of kilometres to go but about ATA end ETE I'm 1-3 minutes to arrive...
It happens navigating a course, a POI, or a saved location.
It also happened with the previous Version 18.XX, and still happens both with current Version 18.26, and Beta Version 19.09
It worked perfectly with Version 17.26
Please, take a look to the "955 19.XX Public Beta Reports"; another user has the same issue: