@Fia: Does the game even use build-in morphs for meshes? If a mesh has any, it's written at the left bottom corner in the viewer. Because usually it's something runtime generated and not backed into mesh. If there are actually morphs there, provide some upk with such mesh (here or via PM).
Yeah there is built in @spiritovod
VC2N892NX2HXYCQF0REHFEBF on the Steam version
Object pc_wr_f_00_face_sk this one have 44 morph.
(The one generated at runtime work how ? Bone deform ? Multiple mesh with one base and other with for exemple different facial expression ?)