Love LibreOffice. The only problem I repeatedly have is using track changes. This can come when receiving .doc files built from Word, converted from Pages, or even on internal documents (saved as doc.s)
Changes made to a document may not be detected when going through and accepting / rejecting.
On accepting a change, the line pitch and point size can alter (but not always).
On editing a previously saved document, my earlier changes might not all appear. Or if they do, the suggested change field can be empty - again, not consistently.
On sending an edited document containing changes, the recipient has been unable to accept, reject, or even delete my suggestions.
I update regularly, and have just gone up to 4.4.2.2. Not sure if the same will happen now, but it has been consistent to date (and causes such a problem that I have reverted to highlighting text and sending a separate doc with suggestions). I’m using Windows 7 on one computer, and 7 pro on another; both have the same problems.