Please try the following steps:
1. Make a slight modification to the original page.
2. Save the changes.
3. Navigate to the WPML Translation Editor and complete the translation.
If the issue persists, can you please elaborate a little more so I can better understand? Sometimes screenshots illustrating what you mean may go a long way to clarify what words fail to transmit so if you like make use of "upload an image" below the comment area.