You give no details, so we can only make assumptions....
It sounds like you are rendering with LightWorks in ArchiCAD? If so, the LightWorks textures are not what is exported to Artlantis (not possible); rather it is the internal engine / opengl textures.
Generally, one is better off assigning and adjusting textures and lights in Artlantis itself....and then using that adjusted file as a 'reference' file for subsequent exports.
Cheers,
Karl
One of the forum moderators
AC 28 USA and earlier • macOS Sonoma 14.7.1, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB