How to fix quality view actor problem

Hello,

A long time ago, I had had one problem with the graphical quality of my actors.

I have one blueprint class that it has a skeletal mesh component and I need to change it in runtime, when it changes the mesh sometimes its quality is very bad and the image definition is pixelated.

In the image there are two actors post static (sides of the image) and in the middle one actor spawned from blueprints (with node “spawn actor from class”). This last actor was changed its skeletal mesh, but we can see the quality is not the best.

I need to know what is the problem when I change the skeletal mesh?, why does it lose quality?, and how to fix this problem?

Thank you by the attention

Things to look at:

What do the UVs look like? Could be a LOD setting?