this is a rather stupid regression in 3.5.6, introduced by the fix for fdo#38056 which can cause crashes because the invalidation is in the wrong place please push the fix to libreoffice-3-5-6 and libreoffice-3-6 http://cgit.freedesktop.org/libreoffice/core/commit/?id=9e74e9f3c0931f34fb5421056851a06b83501ce9