Loading visualization with a "Text module" fails: Exception ...

Hi, anyone knows how to solve this:

After saving a visualization of a scene that includes a “Text module” in order to add a title to the image, if you try to load that visualization Mayavi2 shows the error: “Exception In /usr/lib/python2.7/dist-packages/traits/trait_handlers.py:168
TraitError: The 'y_position' trait of a Text instance must be a float, but a value of None was specified. (in error)”
I have try several things but it seems to be a bug. This text module is very useful when it is wanted to have the name of the images in the snapshots.