In Settings > Configure OpenLP..., Songs, try unchecking the option to Import missing songs from service files. I'm running 2.4.3 on Windows 10 and have that option checked. On my system, songs aren't duplicated in the Songs library when opening a saved service. But I'm curious if disabling that option stops the duplication for you.<br><br><img alt="" src="https://forums.openlp.org/uploads/editor/47/h16t32s0j175.png"><br><p></p>