Spine assets should be exportable in the updated specific build, mentioned in the first post. Note that if you're exporting the whole folder, there will be texture duplicates (one from actual texture export and one from references in atlas) placed in different folders. Spine export was created in the way it would be compatible with most spine viewers, which expects for all related files to be present in the same folder.
Hi, can you share where the spine files are in the viewer? I checked the option for atlas/skel files thinking it would export on the character folder but I can't seem to find them