Hello Bruce,
Thank you for posting in the community and sorry to hear about the troubles with this texture issue. We did address some issue in the latest 2022.2.1 hotfix related to missing texture paths. Have you updated to the latest version and if you are still experiencing this issue please submit a bug so we can further investigate: https://twinmotionhelp.epicgames.com/s/case-community-page
Kind regards,
Vincent B.