CInema 4D editor viewport missing textures

[Agendum]

Hello, Im trying to resolve the issue of not having textures show in the editor viewport of C4D R19. The LiveViewer works fine but the textures turned white for no apparent reason. Similar texture problems have happened before but resolved itself for reasons unknown to me (even switching OpenGL on/off with restarts.)

All textures are converted to Octane textures.

Currently using the latest Nvidia Studio Driver (but things were working fine even while using this one.)

Hardware is GTX 1080 + RTX 2070.

[aoktar]

Check "opengl preview"
http://www.aoktar.com/octane/Options.html

[Agendum]

It did not work.

[aoktar]

Make a copy of c4d's prefs folder. And delete it! Restart c4d and check if it solves. It's a settings problem if it seems fixed.

[Agendum]

It seems to have worked. I deleted and replaced the Prefs folder with a copy, copied all the geometry, lights and textures to a new C4D file and the textures loaded back up fortunately.

It seemed to have randomly lost textures after copying and pasting untextured kitbash objects (from another scene) into my scene.