At 5D Render, at the next opening the scene, all textures on SKP models are lost, which were imported and installed in Archicad 23-27

Please implement - when synchronization with Archicad, if I keep and close the scene in the 5D Render program, and then I will open it again, 5D Render is lost all the textures that were previously replaced in 5D Render with imported 3D objects in Archicad 23-27 (for example, in SKP format).