Mastermind Pets getting stuck in Positron 2 Mission

[The Other Guy]

In this past week or so, I've run three different Masterminds (Thugs, Bots, and Demons; 2 minions 1 LT) through Positron 2. All three times, the pets get stuck in the first mission just after the second group. of clocks, where the tunnel slopes down. They're not hung up on anything, they just don't move forward. I have to dismiss them and resummon. Once I do that, they perform normally for the rest of the TF.

 

The only other thing I can think to add is that I was playing a rogue in all three cases.