We need a lot more information than what has been provided.
For information on how to report a good bug report please read: https://wiki.documentfoundation.org/QA/BugReport#Good_Reports
At a minimum we need:
Your operating system;
Your version of LibreOffice;
Clear and simple reproducible steps;
Setting to NEEDINFO - once you provide a good report please set to UNCONFIRMED. Thank you
*** This bug has been marked as a duplicate of bug 88790 ***