I also had this issue but my sims were in a group at the time. When it was just one lone sim ungrouped it worked and he gained skills.

It was kind of creepy seeing all the sims still cheering away and throwing confetti onto the tombstone of the sacrificed sim before I reset all sims.

And thanks Claeric for the pick up and replace the city hall idea. At least I know there is a way to do it and not kill sims when/if I get tired of the carnage. Mwahahahaha!

I kind of fixed my award ceremony glitch. I backed up my saves then experimented a bit. If the sim getting the award dies and you then reset the other sims gathered they don't return to zerg the town hall. Killing one sim to save the neighbourhood was the only solution that's worked for me so far.

If you just let them keep going, after a while they get huge needs decay and as soon as an active sim enters the town hall lot all the gathered sims start to die of starvation. At one point poor grimmy had 17 dead bodies piled up to deal with and more dieing as he collected them.

For the force kill of the award sim and reset of all sims at once I used the NRaas Super Computer mod found here http://ts3.tscexchange.com/index.php?board=105.0

I'm sure there must be a better fix out there though so I'll keep trying other things.

I had exactly the same thing happen with my level 10 ghost hunter after switching to a different household. I reset all the sims outside the town hall but they all slowly gather again after being reset.

Yes all multiple births tend to be the same gender.
There is a way to change that however by interacting with a doctor sim.
Doctors can find out the gender of the baby.
Perform this interaction on a pregnant sim with twins or triplets on the way and the gender of baby 1 is locked in when the doctor tells you what it is.
The remaining baby or babies can still have their gender altered by food.

Gus has a post all about this called Schrödinger's Baby http://www.moreawesomethanyou.com/smf/index.php/topic,16110.0.html

Ah thank you Chaos. I stand corrected and shal return to my lurking position.

Ok I must have missread "This is a core mod that is incompatible with any other core mod which modifies SimsIFace.dll" on Rick's post.

Disturbia try removing the enablescripterror mod.
I could be wrong but i think both awesome and enablescripterror are core mods.
I don't know enough about awesome to know if it also modifies SimsIFace.dll but if it does then that would be the problem.
Running 2 core mods tends to do bad things.