Created attachment 135591 [details] Sample PPTX Open the attached PPTX (created by PowerPoint) with Impress, and save it again as PPTX. The fade out animation is shown correctly as the file is opened for the first time. Upon reopen and playing the slideshow, however, the shape fades in instead of out (but disappears at the end, just the fade animation is wrong). Same when played in PowerPoint. Observed using LO 6.0 daily build (2017-08-11_06:44:17, 46b4eb8b0e9325f8c29cd391baf9504bccee1837) & 4.0.0.3 / Windows 7.
Aron Budea committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=1ea4496f3b2defaf51391e816d159717c55f2929 tdf#111863: Animations turned from out to in during PPTX export It will be available in 6.0.0. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.