Problem: You are trying to import custom post types (CPTs) using XLIFF, but the taxonomies are not being assigned to the posts during the import process. Solution: This issue is already known and is being discussed in an existing support ticket. We recommend following the ongoing discussion and updates on this topic at https://wpml.org/forums/topic/taxonomies-havent-been-added-correctly-if-i-translate-via-xliff. Please avoid opening additional tickets on the same issue as it may affect the priority and handling of your original ticket.
If this solution does not apply to your case, or if it becomes outdated, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. Should you need further assistance, please open a new support ticket or visit our support forum at WPML support forum.