Okay, so... I finished all the baby abyss dragon sprites, packed them, moved them to the right slot, installed them, and went into a new world to test them...
Then the problems began.
First, they hatched as aquanorns. Who are a totally different slot. Puzzled, I figured DS maybe just hadn't realised the files were there yet, so I fully closed it and opened it up again.
Next came the above complaint, but only when I tried to open the world with the babies in it. It said I was out of memory and should clear more space in my system - for reference, I have 100GB and 41GB free space respectively, and my RAM was only running at 60%. I tried wiping that world and making a new one, but got the same complaint just as the first egg was about to hatch.
Then I thought maybe it was just grumpy about only having the baby sprites for that slot, so I copied over the un-recoloured sprites for the rest of the life stages. That apparently only made it even *more* upset, as now it was saying that I had caused a runtime error.
So, um... any ideas what I broke? >.>
Also known as bab_5_freak from the old Gameware forums.