Am I Adding This RoM Cheat Wrong?

Traits.Equip_trait Trait_Occult_WitchOccult_BloodlineAncient

I did a copy of the exact spelling from Carl Sims web site, and this was the one I used. I think for the cheat to work, you'll need to make your sim a spell caster first. I used this cheat for mine, and it did work. But I want to give you a heads up before you add this trait to your sim, there are some issues involving the ancient bloodline. I'm not sure what they are but others have mentioned it, but with me, my sim was having a problem in keeping all their spellcaster perks. For some reason, it would keep giving me back the points my sim had earned while constantly dropping what they had gained.

For those who are still looking for answears - first remove the bloodline you already have and then you can type the bloodline you want.

For example:

traits.remove_trait trait_Occult_WitchOccult_BloodlineWeak

traits.equip_trait trait_Occult_WitchOccult_BloodlineAncient


Worked for me, hope it works for you :)

ok thanks, I'll change it.

I have a side-save in which I am making spellcaster townies and importing them into my main save. I used a cheat to make one of the sims a high-lvl spellcaster and his perks were bugged. Downloaded him again and the second time it worked.

If you are playing a sim in a save that you really like do a temporary-save as and see how it goes.

There is definitely a bug (or bugs) with the bloodline traits and the retention of perks, although it is not clear whether they are connected with each other and/or with using cheats. See the link below:
https://answers.ea.com/t5/Bug-Reports/OPEN-ROM-Spellcaster-Level-Reset/m-p/8204778#M104744

I used cheats to give the senior witches in my coven the ancient bloodline trait and to max out their perks, only to experience the same problem as described by @LaBlue0314, which is very frustrating as I am unable to keep them at Virtuoso level, where I want them for storytelling purposes.

Obviously, it is up to you whether you want to take the risk of the same thing happening to you, but I would urge caution until the problem has been resolved.

bloodlines are bugged atm and each rank up gives you a negative rank up amount especially at "max rank" where you basically unrank.
you have to use a mod to temporarily fix this.

are all of them bugged or just ancient? I guess I can make him a regular spellcaster. Hope I don't have to restart him from scratch.

Has this but ever been fixed?