Why do some UVs appear only as a pixel in my UV Map after unwrapping?

[markp13.mp]

So I have this model that I'm UV cutting and creating maps for before texturing and after cutting the mesh up, some faces aren't shown in the map after unwrapping. I haven't run into this issue before with any model I've made, but I've been sent a few files to texture that have run into this issue; resulting in some faces that just won't take a texture. Any and all advice would be super appreciated.

I'm still newish to Maya, but I did attach some pictures of my issue. On the left are the faces that I cut, but on the right are also the same faces but they aren't spread out - they're just a pixel.

[Christoph_Schaedl]

Have you deleted the history and frozen the transforms before unwrapping?

[markp13.mp]

Sure did, but still getting the same issue 😞

[Christoph_Schaedl]

Could you upload the scene here as .zip

[markp13.mp]

Here ya are

[markp13.mp]

Was there any luck?

[Christoph_Schaedl]

Im on vacation. Maybe i find time today.

[markp13.mp]

Absolutely no rush I appreciate it and nonetheless 

[Christoph_Schaedl · Accepted solution]

There is no special reason why those uvs are that small. Sometimes this happens during modeling.

And if you do an unfold they dont scale up.

To fix that issue select the faces. And do a projection from the camera.
Now the unfold does work.

[markp13.mp]

Thanks a ton!