I've been getting an off-and-on build error that points to an STM asset:
An asset is marked with HideFlags.DontSave but is included in the build: Asset: 'Assets/Plugins/Clavian/SuperTextMesh/Scripts/Icons/SuperTextMeshDataIcon.png' Asset name: SuperTextMeshDataIcon (You are probably referencing internal Unity data in your build.)
Unfortunately, I haven't figured out how to reproduce it consistently; it just happens randomly after creating a few builds, and maybe after switching build targets (unsure if the Reload Domain/Reload Scene project settings are related to this). I had this problem with an icon from another asset, too, so I don't think it's specific to STM.
Anyway, I can fix this with an editor script that just sets the object's hide flags to HideFlags.None. However, this specific STM icon keeps resetting itself, so I have to reapply my fix whenever I launch the editor. Do you know if you're setting this icon's hide flags from an editor script somewhere in STM?