I can relate to your post so much. Even my children become strangers at times. I do think it's all part of the territory.
For me, pictures don't do anything. I seem to have a block with pictures, even if I know who is in the picture. I can look at pictures of people and if I am in that space where I don't know who I am or they are, pictures don't help at all.

But my children, knowing how I am, work to make sure I keep some kind of connection with them.
I do a lot of self talk and try to ground during these times, if I can. Sometimes I can't and just kind of float off, I guess. It's strange to me when someone calls me by my given name and I stand there thinking, who is that?
I don't have any answers other than try to ground, but I just wanted you to know you aren't alone in this.
I am very shut down lately for some reason but please know I care.