I’m running version 188.8.131.52 on a MBP with El Capitan. When the text formatting toolbar is too long for the screen (because it’s to the right of the standard bar), I click the >> and choose Line Spacing. This instantly crashes LO, every time. If the toolbar is not truncated, then Line Spacing works just fine!
Please file a bug report on Bugzilla.
Ok thanks. I had looked at that site but wasn’t sure if it was for developers only to file bugs.