I've been wondering - and kind of hoping- that's it.  I don't know what happens with the quality/viability toward the end of season, either. He told me one had stopped laying.
 I was concerned by the smaller eggs that lost more weight faster,ended up losing more than 13% and I *think* shrink-wrapped. I say *think* bc I know there are 2 membranes, and if I understood correctly, the inner one is supposed to be papery white and form fitting. But only one had managed to get it's beak through before giving up. Several DIS died right before lockdown, but as you said, they were small. Even candling them I could see they weren't filling up the egg.
By all means, I'm a rookie and make mistakes, but this has been - rough. Whatever I decide to do, will definitely be via recommended sources.