I don't know about crappies, but there are some fish species that will reabsorb their eggs when conditions aren't right. And it is stressful on the females. We had a much above average warm spell in my area a few weeks ago, and I saw my hybrid crappies on the beds in the biggest pond. Then suddenly it got cold again with well below average temps, and even spitting snow. The crappies went off the beds. So is it possible the crappies reabsorbed their eggs and are done for the year if the change is severe enough or long enough vs. coming back on the beds? At least with bluegills even though the main spawn is in spring they will spawn up to 4 X per year, and I have seen them spawning early fall in my bluegill production pond. Not aware of crappies spawning more than once.
I didn't know they could reabsorb the eggs like that. Thats interesting. Could they start over again and still spawn after that?
The lake I usually fish spring crappie also has been odd, found a few spawning a couple weeks ago, but that was it. Managed a good number farther north yesterday pulling crawler spinners for walleye. Fishing just off the weed line. Also caught 3 keeper Walters with some good friends in the boat had a great morning.
I don't know for sure if crappies will reabsorb their eggs, but know other species like trout do. And for those species that do, no they won't be fecund until the next spawning season if they don't expire from the stress. I used to sell live large yellow perch to Bass Pro Shops in Missouri. They told me about a large smallmouth bass that would not pass her eggs in the aquarium, and became "egg bound." They actually surgically removed her eggs so she wouldn't die.