I've had them like that....
It turned out to be a hen who did it constantly. She was a NHR. I only saw the eggs with that poor shell about twice/week. (It was rough, and had the same color pattern as your pics.) I had seen them before but didn't know who laid them. By chance, I had confined that particular hen while rearranging pens. Once I realize SHE was the one laying that egg, I kept her separated. She wasn't molting or under any other stress. After 3 weeks of nothing but those ugly shells - and poor laying with only a couple per week, I culled her.
There may be times when a hen does that and it clears up. In my case, our chickens are livestock. Although we treat them well, and they live a natural life here, still all poor layers are culled.
ETA: Perhaps your gal will return to normal laying. You might give her time if your flock are more like pets to you.