For years this wonderful app has been incompatable with any version of Openoffice, Libreoffice, etc. The developer, Nick Moore: support@pilotmoon.com, has stated that the problem exists inside the office application. This is a very useful addition to the Mac OS that it should be supported by Libreoffice.
@nealt : Simply making a suggestion that program xyz doesn't work with LibreOffice isn't going to help us much. Please identify the problem with reproducible steps if possible, or at least a detailed description of what is not happening under which circumstances, and what should, in your opinion, be happening. Clipboard problems with LibreOffice on Mac are not new per se. At present, it is impossible to tell whether this is one of the known limitations, or a new manifestation of an as yet unknown issue. I would also add that making LibreOffice compatible with various OSX "add-ons" does not currently rank particularly highly in OSX development priorities of the LibreOffice project.
The popclip known issues pages also identifies quite a long list of incompatible apps other than the OOo/Neo/LO/AOO family, including MS Powerpoint and Adobe apps. Until it can be demonstrated that the failing of the popclip app is with LO, then it is unlikely that this will ever be confirmed as a valid request for enhancement. Even if it is confirmed, it would still require someone to be willing to take up integrating / fixing the code to allow popclip to work properly, which is why it is likely that this report will be classed as either NOTOURBUG or WONTFIX. After all, even MS Word has problems with it (see known issues). I'm not going to make that call however. For the moment this report remains unconfirmed.
How to reproduce confirmed on master 4500 alpha) : 1) Install popclip free trial. 2) Activate popclip and authorise it to use the accessibility functions of the OS. 3) Start LibreOffice with an empty Writer document 4) Start Firefox, navigate to a webpage, select some text - a popup menu is displayed automatically. 5) Click in the Writer document window - no popup appears to suggest pasting the previously selected text. What should happen : Popclip's access to the accessibility functions of OSX should allow Writer to display the popclip menu, suggesting pasting of the previously selected text. The problem appears to be one of unsupported accessibility function within LibreOffice, as I see nothing in the lldb output showing calls to accessibility libraries.