Opening a sequence opens a different, separate project within a large Production

Hi everyone, I'm currently working on a Production that has been going for two months. I am experiencing some behavior that I haven't seen before, although I'm holding out hope that it's something obvious and simple.

I am simpily copying and pasting another editor's Sequences from a different project folder within this big Production into my own project folder. When I try to open the Sequence, it forces Premiere to open totally different and separate projects. I can close them out just fine without affecting anything, but it's become a nuisance on these separate projects opening everytime I'm trying to open these sequences.

Is there a reason why these other projects keep opening when trying to view these sequences? Also, is there a setting that I can un-check to stop this behavior?

PPro 2025.5.0 (Build 13)
iMac 2024 M4
macOS Sequoia 15.5