my bad. it's fine. i think it was because giddy-up was always making them not in the same place.
leaving this as a cautionary tale for those that jump to conclusions.

Had a bug that happened with a Feralisk Clutchmother from Alpha Animals. It laid eggs, but they did not hatch. The progress of the eggs was at 250% and it said time to hatch "-1.5 days" ("negative 1.5 days")


This was popping in the log like crazy. Removed Animal Genetics and they hatched immediatly as I loaded the save.

Exception ticking AA_FeraliskSuperEggFertilized244828 (at (21, 0, 230)): System.NullReferenceException: Object reference not set to an instance of an object
at (wrapper dynamic-method) AnimalGenetics.Assembly.CompHatcher_Hatch_Patch.AnimalGenetics.Assembly.CompHatcher_Hatch_Patch.Prefix_Patch0(Verse.ThingWithComps)
at (wrapper dynamic-method) RimWorld.CompHatcher.RimWorld.CompHatcher.Hatch_Patch3(RimWorld.CompHatcher)
at RimWorld.CompHatcher.CompTick () [0x0003b] in <cdbd0ed5089a418da09b9a259f9dbd8f>:0
at Verse.ThingWithComps.Tick () [0x00024] in <cdbd0ed5089a418da09b9a259f9dbd8f>:0
at (wrapper dynamic-method) Verse.TickList.Verse.TickList.Tick_Patch2(Verse.TickList)
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) Verse.Log:Verse.Log.Error_Patch4 (string)
(wrapper dynamic-method) Verse.TickList:Verse.TickList.Tick_Patch2 (Verse.TickList)
(wrapper dynamic-method) Verse.TickManager:Verse.TickManager.DoSingleTick_Patch2 (Verse.TickManager)
Verse.TickManager:TickManagerUpdate ()
(wrapper dynamic-method) Verse.Game:Verse.Game.UpdatePlay_Patch1 (Verse.Game)
Verse.Root_Play:Update ()

"inactive compovercharged"

Also got this popping up on animals, both wild and tamed, after removing the mod. Nothing in the log, it showed in the info menu when selecting an animal. I suspect that is just an error from removing the mod mid save, but I thought I'd mention it nevertheless.

Same, eggs won't hatch.