I recently tried adding Dynamic stealth to my modpack, but it turns my custom npcs inside out when shaders are on.

It also makes them (and mobs from a few other mods) visible through blocks:

Optifine shaders are incompatible with entity fading and the vanilla glow effect (they use their own glow effect instead, but don't quite detect client glow correctly). DS uses a glow effect on the currently focused mob by default.

Disable entity fading in (client settings -> entity fading) by setting "min opacity" to 1 and/or "max opacity" to 0... ...and disable the targeting glow in (client settings -> HUD -> targeting HUD style) by setting "glow" to false

Almost 100% sure this should solve the issue, but if not tell me and I'll reopen this

Maybe I'll put a note for this issue in the mod description

Can You send screnshot configs pls

Optifine shaders are incompatible with entity fading and the vanilla glow effect (they use their own glow effect instead, but don't quite detect client glow correctly). DS uses a glow effect on the currently focused mob by default.
Disable entity fading in (client settings -> entity fading) by setting "min opacity" to 1 and/or "max opacity" to 0... ...and disable the targeting glow in (client settings -> HUD -> targeting HUD style) by setting "glow" to false
Almost 100% sure this should solve the issue, but if not tell me and I'll reopen this
Maybe I'll put a note for this issue in the mod description

Can You send screnshot configs pls

Where are these settings? Searched the entire minecraft and optifine settings and not a single "HUD" or "entity fading" setting exists?

Optifine shaders are incompatible with entity fading and the vanilla glow effect (they use their own glow effect instead, but don't quite detect client glow correctly). DS uses a glow effect on the currently focused mob by default.

Disable entity fading in (client settings -> entity fading) by setting "min opacity" to 1 and/or "max opacity" to 0...
...and disable the targeting glow in (client settings -> HUD -> targeting HUD style) by setting "glow" to false

Almost 100% sure this should solve the issue, but if not tell me and I'll reopen this

Maybe I'll put a note for this issue in the mod description

Yes, that fixed it, thank you very much!

np