In 5.2 Project settings I see this setting.
Set it to false and it shouldn’t import as VT.
Also you should be able to select the VT textures and right click.
Select Convert to regular textures
Check the TextureSample > SamplerType is set to Color in the material (or Normal for the normals).
You may need to clear the texture out of the TextureSample first to see all the SamplerTypes, then add back the texture.
