With 15-50 profile, the bot will always stop when you discover new Dungeon - so you need to do it manually.
I think it is because they are part of the story line quest?.... I am at lvl 40 atm. Going well but a lot tweaking.
Once you get your first lvl 50, things should be easier, lvling via fates is not kind of reliable, depends on zone.
I am putting my avatar to a zone below my lvl, so if I am lvl 40 - he is doing lvl 30-35 fates. (he is doing fates while I am not behind my PC)
When I am supervising my PC I am doing quests and he gets stuck most of the time.