I've had a couple different clutches of burms where that happened. One clutch a few years ago I had around 30 babies hatching out from an albino green female. The main male that bred her was a green not het for albino. I also had an albino male het for green lab with her. I was cutting the eggs and noticed all green babies until around the 20th egg I came across a normal albino, then a few eggs later there was an albino green as well.