having some issues with textures and changing rigs on object

Hi. We need to see the blend and package files

Did you already fix the table? The issue in the screenshot is not present in the package

The chair blend file does not contain textures, so i dont know if theres the same issue. I can, however, list all other issues i see
- there is Subsurface modifier that makes the mesh unnecessary high poly;
- if you want to use subsurf, model an object in a way that illuminates triangles and n-gons. See how bad the topology is because of them?

- do not mark each edge as a seam, seams should be only where you want to split the mesh into uv islands;
- if an area of the mesh is covered completely, it is not needed and can be deleted;
- if you're going to bake textures, there must be no overlapping of uvs. You should also select everything in Edit mode and Face - Shade smooth;
- the chair is not assigned to transformBone;
- uv_1 needs to match uv_0. Delete uv_1, duplicate uv_0, rename;
- chairs generally have multiple meshgroups in the package: the chair itself and one or two shadow planes. Yours has only one, so only one will be overwritten in the package while the rest will stay

As for the table:
- The table is higher than it should be, so animations will not work as intended.
- the glass uvs do not align with the texture
- and, again, uv_1;