Automatically Fully Possessed in S&P's

I’ve been running a lot of Duo Seek and Preserve scenarios in E15 - E17. We’re sometimes getting automatic fully possessed survivors. In one instance, we had two survivors, one fully possessed and one that was clickable, right next to each other. When we get the fully possessed survivor, the announcer announces it as such. I thought this was a new feature since this is the first time I’ve come across them in the 3+ years I’ve been running scenarios, but I’m told it’s a bug. I’m going to record every scenario from now on, but these guys are making us lose our 10/10 survivors rewards.