[AIS/HS2] Hair shader changes get removed when saving costume

[Mixiel1]

When saving a costume (coordinate) in AIS/HS2, any hair shader changes in Material Editor are removed/reset.
It is always the case, so very easy to reproduce.

Changes for other slots (including body slots) are preserved, it's only for hair.
Saving the character does preserve the hair changes, it's just when saving the costume.

I'm not sure in which plugin this issue could be, hence I'm posting it here.

Maybe you can point me to in which plugin this error could be.

[ManlyMarco]

Is this a new issue? If so, what is the last version of ME that worked correctly? Send output_log from game directory after triggering the issue.

[Mixiel1]

I don't think it's a new issue, I've had it ever since I started to change hair shaders which is fairly recently.

See here the logs, one with change and one without, I don't really see any difference.

output_log - with shader change.txt

output_log - no shader change.txt

[Mixiel1]

I'm a little bit further, when I put a log in the ChangeHairEvent of the MaterialEditor, I see that it fires that event (twice even) before starting the Coordinate save, and only for that save, not for the Character save. I'm having trouble determining what causes these extra hair events to trigger tho...

code

internal void ChangeHairEvent(int slot)
{
if (!MakerAPI.InsideAndLoaded) return;
if (CharacterLoading) return;

MaterialEditorPluginBase.Logger.LogMessage("ChangeHairEvent slot = " + slot); // added

result in log :

[Message:Material Editor] ChangeHairEvent slot = 0
[Message:Material Editor] ChangeHairEvent slot = 1
[Message:Material Editor] ChangeHairEvent slot = 2
[Message:Material Editor] ChangeHairEvent slot = 3
[Message:Material Editor] ChangeHairEvent slot = 0
[Message:Material Editor] ChangeHairEvent slot = 1
[Message:Material Editor] ChangeHairEvent slot = 2
[Message:Material Editor] ChangeHairEvent slot = 3
[Info :Remove Cards To Recycle Bin] Moved "d:\games\ai shoujo\userdata\coordinate\female\aiscoordef_20260510181129299.png" to recycle bin before it was removed or overwritten.
[Debug :Modding API] Saving coord "Test 1" to chara "Tsubomi from Unknown"
[Debug :Extended Save] Coordinate hook!
[Debug :Sideloader] Reloading coordinate [d:/games/ai shoujo/userdata/coordinate/female/AISCoordeF_20260510181129299.png]
[Debug :Sideloader] External info count: 0
[Debug :IllusionFixes] Starting unused asset cleanup

[Mixiel1]

Same behaviour in a clean AIS version with minimal plugins and no mods.