How I fixed the problem using DAR/OAR 

Required:

the original mod, DAR or OAR animation, Immersive Interaction (if you want it or if you are using it)

Download the mod; you will only need the HKX file.

DAR/OAR

Go to Skyrim Special Edition\Data\meshes\Actors\Character\animations\DynamicAnimationReplacer\_CustomConditions, create a folder and rename with any non-existent number ( In my case, I named it 799999)

Inside this folder,paste the animation file IdlePickUp_ground,  create a simple text file (TXT) and name it _conditions

Open the TXT file and fill it in. In order to avoid interference, I have included the condition linked to SexlabAroused.

IsFemale() AND
NOT IsInCombat() AND
NOT IsWeaponDrawn() AND
IsFactionRankLessThan(10, "SexLabAroused.esm"|0x03FC36)

save TXT , launch FNIS/Nemesis 

Immersive Interactions ( only if you're using it )

Open ESP with XEdit, extend menu Immersive Interactions /Quest , search PickUp_Ground and read ID 

Go to Skyrim Special Edition\Data\meshes\Actors\Character\animations\DynamicAnimationReplacer\_CustomConditions\19934

drop IdlePickUp_Ground.HKX, previously downloaded from the original mod

Open TXT _conditions and change string with ValueEqualTo("ImmersiveInteractions.esp"|0x00075C3E) It is the value identified by the ESP.

Save TXT and enjoy 

Demonstration video

character assets.7z

Extrat copy/Drop into Skyrim data\meshes\actors\werewolfbeast\character assets

The console, on helps, as it will be a BadEditor, this is because, the equipment will already be decommissioned

Approach the NPC just close enough to see its name , now press the 'N' key ( sometimes it is enough to have the NPC in your crosshair) , open MCM\Sexlab\Editor strip, you will have 2 equipment menus, one yours, the other NPC's . Extend this menu and tag all removable

The NPC will not dress until the end of the animation . This little 'trick' is best applied on NPCs of the same type , for example Guards of Falktreath , tagged the first one, all others will do the same, as they belong to the same tag type .

Repeat for guards/soldiers of other factions 

Same system, also works for creatures (e.g. Falmer /Rieklings) 

For single NPCs (followers) it must be applied each time. Followers ( Lydia for example), unlike guards/soldiers, have no faction except to be Huscarlo

[Active effect 1 on  (00035534)].RaceMenuHHScaleEffect.RemoveFix() - "RaceMenuHHScaleEffect.psc" Line 95
    [Active effect 1 on  (00035534)].RaceMenuHHScaleEffect.FixHeight() - "RaceMenuHHScaleEffect.psc" Line 116
    [Active effect 1 on  (00035534)].RaceMenuHHScaleEffect.OnGetUp() - "RaceMenuHHScaleEffect.psc" Line 41
[08/02/2022 - 06:13:37PM] error: Unbound native function "UpdateNodeTransform" called
[08/02/2022 - 06:13:38PM] error: Unbound native function "HasNodeTransformPosition" called
[08/02/2022 - 06:13:38PM] WARNING: Assigning None to a non-object variable named "::temp32"
stack:
    [Active effect 5 on  (0003550C)].HeelsFixCorrectEffect.CheckHeelsHeight() - "HeelsFixCorrectEffect.psc" Line 212
    [Active effect 5 on  (0003550C)].HeelsFixCorrectEffect.OnEffectStart() - "HeelsFixCorrectEffect.psc" Line 113
 

This is because, it remains as if it were trapped in the animation itself. This bug effectively prevents the character from leaving the animation when it is finished. How to proceed to resolve?

Simply with RacemenuAlternative. 

In the first case we need to have access to the shortcut menu (Key Q), having taken care to prepare it in advance, with what we consider useful for the adventure: weapons, potions, spells and anything else we may need to find quickly by pressing a button . To do this, you access the player menu and, on the various categories, select and press the Key F to import into the quick menu, from here then, just assign them a number from 1 to 8 to use it whenever we want.

Many already know this step. Returning to our bug, since you can only access the game menu and the context menu, open the aforementioned menu (Key Q), select Racemenualternative, close the menu and press the Key Z

Enter the creation mode, without making any changes, exit the menu and the bug ... Puff is gone

The same method is also valid for bugs in HDT hairstyles

This little trick will definitely save you from having to reload a game

The bug that presented itself to me made the Slavetats mod work in reverse. That is, the tattoos were visible with armor but, they disappeared on the naked body

Before 

How I solved it

I opened NiOverride.ini , to the item

[Overlays/Data]
; Assigns these alpha properties to all overlays when they are applied
; 4844, 128 is recommended for solid overlays (they will render correctly underwater)
; Changing the overlay's alpha value ingame acts like 4845 regardless of assigned flags
iAlphaFlags=4845 ; Default[4845]
iAlphaThreshold=0 ; Default[0]

I set iAlphaFlag to 128 ; Default to 128 and save file . I started the game, the body was completely black, almost without the Mipmaps . Closed the game without saving

I reopened NiOverride.ini and set the string iAlphaFlags and Default  exactly as in the original . Result? The tattoos now show up on the naked body. this operation probably unlocks the Nioverride stall

It doesn't necessarily work with everyone, but we might as well try

PS:. 

If you want to increase the number of tattoos , change the values of the strings

[Overlays/Body] ; "Body [Ovl#]" and "Body [SOvl#]"
; Determines how many body overlays there should be
iNumOverlays=10 ; Default[10]
iSpellOverlays=0 ; Default[0]

[Overlays/Hands] ; "Hands [Ovl#]" and "Hands [SOvl#]"
; Determines how many hand overlays there should be
iNumOverlays=6 ; Default[6]
iSpellOverlays=0 ; Default[0]

[Overlays/Feet] ; "Feet [Ovl#]" and "Feet [SOvl#]"
; Determines how many feet overlays there should be
iNumOverlays=3 ; Default[3]
iSpellOverlays=0 ; Default[0]

You will find Aliki'r at the entrance of Whiterun, who will ask you to find a person .

Go to the Barded Mare (Whiterun), and you will find Saadia in the kitchen, tell him that someone is looking for her. Follow her to her room for a private interview and, from here, you will start making choices.

Continue the dialogue until he tells you to go to the prisons to talk to an Aliki'r .

Found the guy, he will offer you to pay the bounty (100 septim) in exchange for an information: Where is Kematsu hiding . Pay the bounty, go back to the prisoner and then go to the Rogue's Lair .

Make your way to Kematsu, talk to him . Make your choice. Listening to kematsu, or killing him, along with his followers: And yes, he is not alone .

The mission will be completed in both cases.

If you decide to listen to Kematsu, take Saadia to the stables. Watch the Saadia / Kematsu dialogue and, here the bug starts.
At the end of the dialogue, Kematsu will cast the Paralysis spell on Saadia but, often, will not trigger. Which will lead Saadia to attack us .

To avoid this, the solution is to equip ourselves with the Calm spell , and throw it on Saadia. This will prevent it from attacking. 

For this spell to take effect immediately, make sure you have a good rank in the magical class you belong to. If so, continue throwing until you hit it with magic

The necessary is a trivial matter.
1) Quest ID: MQ204

2) Blocked point ID 30 

3) REFID of the dragon 0003C57D

Procedure:

Go to any other outdoor location that you have already explored , open a console and insert this string

PRID 0003C57D

moveto player 

This way, the dragon will be moved right in front of you, it may still be invisible

Open a console and insert this string

setstage MQ204 30 

And yes, to bypass the bug, we need to roll back the quest.

Open a console and insert this string

setstage MQ204 40

setstage MQ204 50

setstage MQ204 60

At this point, the bug should be resolved. Go to the top of the Throat of the World to find Paarthurnax flying over your head . From this point on, just follow the Quest instructions (reset via console) to proceed with the game.

This is the method I used to bypass the dragon invisibility bug. Others might solve it some other way.

It is assumed that the bug is generated due to the location of Paarthurnax