I’m playing a Beastmaster Primalist and I have the skill node that causes minions to leap with you when you use Fury Leap. If you have an open portal and you leap to the portal and click it before you land the minions do not travel with you and are left behind. This is 100% reproducible in my experience.
Since Summon Wolves changes into Howl after use the minions are not resummonable and you have to zone out and back in to recover them.
Relevant Skills:
Fury Leap w/ Pack Leader skill node
Summon Wolves
Possibly Relevant Gear:
Herald of the Scurry