r/misleadingthumbnails

I have been finding these small beetles in my bedroom for the past one to two months. They are roughly the size of my little fingernail. They are usually on the walls, often near the bed or wardrobe.

So far, I have not noticed any damage, and the mattress looks completely normal. I also do not have any itchy bites or other skin irritation.

Because the weather has been quite hot, we have been sleeping with the windows open for several weeks. The apartment is also relatively humid, although we do use a dehumidifier.

I have already tried to identify the beetle myself. It is quite small, and the suggestions I received, such as a wood cockroach or German cockroach, do not seem to match the photos I have compared them with.
I would simply like to know what kind of beetle this might be, where it could be coming from, and whether I should be concerned about it.

This tiny pin keeps falling out after maintenance. Any fix?