Broken Custom Tattoo culling sim's skin texture completely

Apologies if there is a more relevant thread for this report to go under, but after some digging, there does not appear to be. Please do let me know if I missed something.

[PC, Windows 10, All packs, no mods/CC, fresh save] Spent a good deal of time making some custom tattoos for a sim using new tattoo paint mode; uploaded individual tattoos to my personal gallery as well as the in-progress sim, so that I could take a break and come back to it at a different time, uploaded save/quit out as normal. Upon logging back in today and downloading the sim to resume progress, the sim's skin texture has fully broken, appearing to have been culled. (See attachments)

Troubleshooting: 

• Removing the custom tattoo(s) reverts the sim to normal. Sim displays fine/as intended within the gallery, with the intended custom tattoos. 
• Applying the individual custom tattoos to the sim breaks the textures again; these display broken in the gallery as well, except for the first default image. These were displaying normally yesterday.
• It does appear to be specifically these tattoos that are broken, as I have yet to find another tattoo in the public gallery with this issue. 
• Applying any one of these tattoos (head/chest/lowerleft arm) hides the entire sim's texture. Paint mode icon becomes colorful to indicate the game believes a single-layer tattoo has been applied.
• Opening any single tattoo in paint mode shows normal blank/empty tattoo texture on the normal paint mode sim model (intact skin textures). Making any single mark on the same layer or a new layer restores skin texture visibility, as does clearing out all marks on the affected layer, but ONLY after making at least one mark first.
• Opening any single tattoo in paint mode with all three tattoos applied does NOT show the normal/blank tattoo paint mode sim model (skin textures are black/hidden). Making a mark on the affected layer has NO effect; making a mark on a new layer causes layer to become visible in paint mode ONLY; it is hidden upon exiting paint mode, regardless of layer order.
• Clearing any 2/3 tattoos causes the skin texture in the remaining tattoo to be unhidden in paint mode, but the original tattoo textures still do not show regardless, and exiting paint mode without making a mark reverts to a hidden skin texture
• Closing/reopening the game has no effect.

Unsure if there is anything that can be done to fix this problem; if anyone would like to attempt to troubleshoot them and see if the original textures are salvageable, I can share them from my gallery (CLEARLY LABELED), but this is the limit of troubleshooting I can manage.