Hello, additional information.
If I delete the block and put a new block, the title appears correctly but...
- If I modify the title in the widget adjusts (using edit button), don´t save the new title and the title dissapears in the block.
- I can change the title in the block using "Quick translating tool", but if I modify anything in the widget adjust, the tittle dissapear.
I tested that the problem is when I edit any option in the block.