That's a different color than the lash eggs that my hens have laid. Doesn't look like the shape they were either, but that's not saying much since they can be a variety of shapes. The hens that I had that laid lash eggs did eventually die from EYP (suspected, not confirmed) but you can have many many months until they die from it. It usually is a sign that things are bungled up in there, but I'm not sure if its a definite.
The bright side... Hey, Its good it came out!
The one you have there seems more like a misshapen egg-
with the shell. (I've had a few of those too) . You said it was soft though, so I guess not. Its too bad you didn't get a chance to cut it open, not that its a pleasant experience or anything
, but it would help you know what you are dealing with like Sonya9 said.
Please keep us informed here about your hen or if any more lash eggs or whatever it is occur. I hope for you and your hen its just a fluke and all will be well.