Edit: This was on PC
What you were expecting to happen, and what actually happened?
To have all troops dead and gone when I won.
What actually happened was.
I was exploring in Blackhawk. Team was Waverider, Siren, Siren, Green Seer.
I was with Gorgotha, TDS and two Necromancy troops.
I got TDS charged and started casting but he managed to get his Waverider off, on the second Siren who got Submerged. I cast TDS twice (the Siren ducking both times) before he cast that Siren, removing the Submerge status. However, visually the Siren continued ducking next TDS casts. However by the time I killed Green Seer I had won, leaving a visible Siren on 5 health remaining. There was probably a skull match onto that specific siren in between all those TDS casts too.
What are the steps to make it happen again?
Do you have any screenshots or video you want to share with us so we can see the problem? Attach them to your post!