Amjoie - No hon, you will not hurt a thing to change an assigned ones job first of all - especially if it is one of your own sims. The problem would be if one "deleted" a sim generated by the game mechanics specifically to fill those festival booths or anywhere a sim has been made by the game to fill a work position - it can and often does cause corruption - but you can use that sim - play that sims even give them a different job and the game will add another sim to work in that job. It is the same if the game decides to take one of your unemployed sims and place them in one of those kind of jobs but you don't want them stuck in a booth or on a register or even behind a bar - just play the household and have the sim quit the job and get the job you want them have. The game will indeed replace them and nothing will be skewered, or corrupted at all. It was not so much the job being assigned as it is if this sim was created by the game or selected from it's already waiting job pool and they were not ever in the game, but put into the game by the game mechanics - that one can corrupt a save if you "delete" that sim. I do know people have deleted the game generated sims without corruption - or so they tell me - with either Twallans MC (I think it was) or Awesomemod - because those mods have features that deletes all parts of the sim scattered about in the programming, but to just delete the sim with out the help of the extra cleanup those mods can do, in truth is not really deleting the sim - it's status, it's programming - even it's place in the world still exists in the game mechanics - all you have done is made the sim invisible so you think it is gone and made it so it cannot physically do that job, so the game will issue another sim in that ones place - but with the info for the other sim still in place and the game still somewhat playing with the first sims info as if it was still there - it will eventually cause the game to hesitate and develop the same kind of little freezes it gets when a sim is stuck or lost off world. In other words all one deletes when they delete a sim is the part of the sim one sees. It is why I tell simmers never to delete their sims unless they use the mods that have the clean feature that is in Awesomemod or in Twallans mods that are designed specifically to delete (annihilate a sim). If this was not needed to be done that way, do you honestly think modders as smart as Twallan and Pescado would make a specific code just for properly deleting sims if there was anyway to actually really delete a sim safely in the game? They are not going to go and add something to a mod that is not absolutely necessary. But again I am saying that this is just regarding deleting sims - not changing their jobs.
Feel free to change any sims job you want to, even EA made sims, as long as you play their household and have them call up and quit the job, the game sees that and will automatically put another sim there. That way you are playing with the game as it was designed and will not confuse the programming if certain steps are followed. Then you will get no corruption. Again I repeat you can successfully use awesomemod or twallans numerous mods that allow one to legitimately change a sims occupation or even take them out of the game, but to do it without a mod sets one up to save corruption. It really does not matter if you are using just the base game or have a new ep when dealing with things like the. The info I gave regarding New eps to the other simmers was things that are recoded due to a new ep. Sometimes sims are affected - but a new ep will not generally change established story lines as far as jobs go. It may try and take your sims that don't have jobs and place them in new jobs, but it is no big deal for you to just have them quite that job and have them get the one you want them to have. The game should not affect those who have jobs already.
Now if your sim had a job when you last played them, then you moved to a different family, and then you see the sim from the former household doing a different job than you left him with, chances are he got fired from the job you left him with - maybe he got lazy when you were not there to make him go to work or maybe he was late everyday so he gets fired. Some sims the game may put in a new job if they lost the old one - or sometimes the sims who have been played will go and get their own job - the game is coded to do both. But the game will NOT put your sim in a different job if they still have one. But again let me stress that changing their job by quitting the one you don't want them to have - wipes their job slate clean in game, and will allow you to give them any job you send them to get with NO corruption.
I know I repeated that several times in there - but hopefully it clarifies for you everything. Basically it boils down to just do not delete sims. Not even from the clipboard - the only exception to that is using mods that are programmed to delete sims properly - but as long as you never delete a sim - you can do just about anything else you want with them - move them, marry them, play them, give them new jobs - anything but deleting them. Hope that clears it all up for you Amjoie.
