CAS not fully loading after update

jaded_hazel​  How are you entering CAS?  Is this a problem all the time, including with different sims, or does it come and go?  And do you see the same issue if you try to create new sims?  You don't have to spend any time on them; just load CAS and see what happens.

puzzlezaddict​ - Hello - thank you for your response.  I have gone in a few different ways to see if it was just one way vs another. The first time, I went in through the household manager. The second time I loaded into the household and selected "plan outfit" on a dresser. The third time I went in through "modify in CAS" on MCC Command Center and I also tried to create a new save with a new Sim. I also have better exceptions and was triggered when I went into CAS but has come back that I do not have any exceptions that it can find w/ my current mods/CC that I have installed. I have continued to mess around w/ the mods and CC that I have seeing if something happens when I remove some but the only way that I've been able to successfully get into CAS is with my mods/saves removed. I am hoping this isn't a save file bug. 

puzzlezaddict​ - i did another test - kept all my mods/cc in and loaded my current save game and went to make a new game - no issues. I'm sure that is only because it's a new save? i'm just trying to think though what else i can do to test it out.

This was the exception report - if that helps anyone

<?xml version="1.0" ?><root>report><version>2</version><sessionid>f03ef16bacb95c2b6a07abff</sessionid><type>desync</type><sku>ea.maxis.sims4_64.15.pc</sku><createtime>2026-05-15 23:44:23</createtime><buildsignature>Local.Unknown.Unknown.1.124.55.1030-1.200.000.708.Release</buildsignature><categoryid>(AS)widgets.CAS.Molecule.data::CASPreferencesSelectionDataFeed</categoryid><desyncid>f03ef16bacb95c2b6a07abff</desyncid><systemconfig/><screenshot/><desyncdata>TypeError: Error #1009: Cannot access a property or method of a null object reference.&#13;&#10; at widgets.CAS.Molecule.data::CASPreferencesSelectionDataFeed/AddSelectedTraitToCache()&#13;&#10; at widgets.CAS.Molecule.data::CASPreferencesSelectionDataFeed/SetSimInfo()&#13;&#10; at widgets.CAS.Molecule::EquippedTraitsAsp/SetSimInfo()&#13;&#10; at olympus.core.widget::WidgetBase/Initialize()&#13;&#10; at olympus.core::LayoutManager/LoadWidgetCompleteHandler()&#13;&#10;rtim=73884&#13;&#10;Client Session Time: 252.79&#13; &#10;Num Save Errors: 0&#13; &#10;Num Load Errors: 0&#13; &#10;Current Game State: 0x96d01090&#13; &#10;LoadingScreenActiveFlag: 1&#13; &#10;Origin Version: 13,696,0,6209&#13; &#10;Modded: True&#13; &#10;SystemInfo: Windows 11 10.0.26200 GPU: AMD Radeon(TM) Graphics 31.0.21914.8004, GUID: ED42EE1B-BB2A-11EF-8A12-81EC8B4E42B4&#13; &#10;</desyncdata></report>

</root>

puzzlezaddict​ Hello - yes, that fixed the problem and I haven't had any issues until last night. I was in CAS again and noticed that when I switched from one Sim to the other in the household, the traits/name did not switch with them. I restarted and Better exceptions ran stating broken trait mod but wasn't able to identify the mod. 

I have followed the same steps as before - removed my mods, made sure everything was updated, repaired my game, and went back to an older save file and I am still having the issue in CAS where the traits/Sim profile doesn't change when I click on a different Sim in the household.

Here is the diagnostic report from Better Exceptions - and additional guidance would be much appreciated. Thank you! 

<?xml version="1.0" ?>
<root>
    <report>
        <version>2</version>
        <sessionid>f24fe2b87f769eb06a14ed68</sessionid>
        <type>desync</type>
        <sku>ea.maxis.sims4_64.15.pc</sku>
        <createtime>2026-05-26 00:58:21</createtime>
        <buildsignature>Local.Unknown.Unknown.1.124.63.1020-1.300.000.241.Release</buildsignature>
        <categoryid>(AS)widgets.CAS.Molecule.data::CASPreferencesSelectionDataFeed</categoryid>
        <desyncid>f24fe2b87f769eb06a14ed68</desyncid>
        <systemconfig/>
        <screenshot/>
        <desyncdata>TypeError: Error #1009: Cannot access a property or method of a null object reference.
    at widgets.CAS.Molecule.data::CASPreferencesSelectionDataFeed/AddSelectedTraitToCache()
    at widgets.CAS.Molecule.data::CASPreferencesSelectionDataFeed/SetSimInfo()
    at widgets.CAS.Molecule::EquippedTraitsAsp/SetSimInfo()
    at olympus.core.widget::WidgetBase/Initialize()
    at olympus.core::LayoutManager/LoadWidgetCompleteHandler()
rtim=40553
Client Session Time: 312.47
Num Save Errors: 0
Num Load Errors: 0
Current Game State: 0x96d01090
LoadingScreenActiveFlag: 1
Origin Version: 13,709,2,6223
Modded: True
SystemInfo: Windows 11 10.0.26200 GPU: AMD Radeon(TM) Graphics  31.0.21914.8004, GUID: ED42EE1B-BB2A-11EF-8A12-81EC8B4E42B4
</desyncdata>
    </report>
</root>

jaded_hazel​  I would rather have the raw lastexception file with your entire Mods folder removed.

I was able to repair it again but will update if I have another issue. I've removed all mods/cc that do not have an update later than the last patch but will play with no mods and report if there are any more instances. Thanks again :)