Sexlab fatal error - Failed to load actor to thread.

[Anonmon]

So I'm experiencing an issue with Sexlab animations not playing after completing the prerequisites to trigger them. I've been troubleshooting them already in this topic:

 and was asked to try again here.

Here's the screenshot of the error I get in the console whenever I attempt to start a sexlab scene:


Everything is up to date and the load order looks good, FNIS is ran, and I've tried the few solutions I could find from google. The linked thread details everything else I've tried so far.

Right now, I'm about to try and deactivate sexlab and all associated mods. Then start another new game, and load each mod individually to see if that works.

[traison]

First of all, if you have that SexLab plus mod, remove it.

 

Secondly, post or analyze the Papyrus log from a session where you tried to start a scene. SL has a tendency to log the reason *why* something didn't work, which is rare in software these days.

[Anonmon]

For some reason, Sexlab wasn't letting me change my character's assigned gender from Female to Male without P+.
I'm trying to play as a futa character, so I kind of need that function to work.

1 hour ago, traison said:

First of all, if you have that SexLab plus mod, remove it.

 

Secondly, post or analyze the Papyrus log from a session where you tried to start a scene. SL has a tendency to log the reason *why* something didn't work, which is rare in software these days.

 

[traison]

Well P+ as far as I know breaks most AddActor functions and removes a bunch of standard SL functions. That leaves 2 options that I can see:

1. Remove it to restore default SL functionality, such as playing sex scenes.
2. Keep it, and figure out if you need a special or specific version of SL (and *all* associated SL mods) for it to function properly.

[JimUpdating]

there are some guides I can find, and a link to GenderBender

 

 

Edited March 19, 2024 by JimUpdating

[Anonmon]

Alright, so I removed P+ entirely and downloaded Gender Bender then started a new game.
Still can't change from Female to Male in the Sexlab MCM, but Gender Bender seems to be working properly as far as I can tell.

I loaded up the game and tried to start a scene with a couple of nearby npcs. The error no longer appears in the console, but the scenes still don't play.

Here's the papyrus log:

In case anyone better at deciphering this than me can figure it out before I go ahead and do the turn everything off and enable one by one strat.

Papyrus.0.log

[traison]

4 minutes ago, Anonmon said:

but the scenes still don't play.

 

Issue is here:

SEXLAB - Notice: ValidateActor(Lillith Maiden-Loom) -- FALSE -- They are not supported for animation.

[Anonmon]

14 minutes ago, traison said:

 

Issue is here:

SEXLAB - Notice: ValidateActor(Lillith Maiden-Loom) -- FALSE -- They are not supported for animation.

It happens with any npc, not just that one.
Any idea how to fix it?

[traison]

32 minutes ago, Anonmon said:

It happens with any npc, not just that one.
Any idea how to fix it?

 

Children are not allowed in sex scenes.

[Anonmon]

10 hours ago, traison said:

 

Children are not allowed in sex scenes.

That was an old lady character. If you scroll up more on that papyrus log you'll see when I tried it on a wench. Same error. Lilith was the next closest npc, so I tried it on her as well.

Edited March 21, 2024 by Anonmon

[Anonmon]

Oh, is my custom race being read as a child for some reason? I'm using a Satyress. I found this thread that had the same issue:

Wait, do I need to uninstall Cum Overlays? Is that the problem?

[Anonmon]

Holy shit, that was actually it!

Sexlab Cum Overlays Entended overwrites the Actor Library. It was borking Sexlab entirely because it was out of date. I updated the mod and now everything works.

Thank you everyone that helped me get to here.

[brololo]

for me what helped when i had this issue was ressetting scene threads in the sexlab settings after that no more issues what had caused it for me was i updated to a new version of sos but that version had some things missing that i had with my other version of ae sos so i swtiched back loaded a save before i updated sos and then that error occured i reinstalled sexlab did everything what i could find and then just restting scene threads did the magic 

[traison]

55 minutes ago, brololo said:

for me what helped when i had this issue was ressetting scene threads in the sexlab...

 

There's been some issues in the past with threads getting stuck in a sort of "in-use" state. For me the scene center marker got stuck and refused to move. Everyone starting a new scene on that thread got teleported to wherever the marker happens to be. This is not the Whiterun giant camp issue, that's different.

 

Resetting threads through the MCM does a lot of things, and there's a more precise and faster way to do the reset but it requires you to script yourself a way to run the code:

SetTextOptionValue(option, "Working...")

sslThreadSlots ThreadSlots = (M_Common.E_SexLab As Form) \
As sslThreadSlots

;ThreadSlots.StopAll()

sslThreadController[] threads = ThreadSlots.Threads
int i = threads.Length

While i
    i -= 1
    ;ResetQuest(Threads[i])
    Threads[i].CenterRef = none
    Threads[i].CenterAlias.Clear()
EndWhile

;Debug.Notification("Done")
SetTextOptionValue(option, "Done")

 

I implemented this in my own MCM menu. The funny thing though is that shortly after I implemented this MCM button the issue went away. Unfortunately I do not know when exactly or why. Current theory is that it might have been around the time when I started increasing my Papyrus ops budget. If that's what happened, then this issue could be related to a race condition.