I had what you have pictured happen to me the VERY first time I went into Michael's house, Amanda and Tracey standing where they would be doing what they do ( I actually almost made a thread about that myself). That kind of left a funky first impression, but it corrected itself along with way.
I had all the NPCs inside of Michael's house repetitively and repeatedly spawn, there were at least 20 of Amanda, and she had that stupid face mask shit on, and bathrobe. Each of the clones were following the other from the living room to the kitchen, to outside and around the house. I killed maybe a dozen of them.
The garbage men and maids did this as well, and Jimmy too. I would kill Jimmy, and another clone of him came right down the stairs after the other.
If the body did not die, and the fears borne in the mind just continued to pile up, the world would be nothing more than an eternal prison.