When using convert-to to convert from ODP to PPTX, I noticed the following line in the console: convert <filename>.odp as a Impress document -> <filename>.pptx using filter : Impress Office Open XML This isn't the filter users normally use for PPTX, which is PowerPoint 2007-365. Same with autoplay files ant templates. I don't know if this causes any actual issues as it did in the DOCX case in bug 164201, but let's change it regardless.
Aron Budea committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/core/commit/d4c7b78827c12c4bbc871c3b9eb0ce28271adba4 tdf#165180 convert-to: prefer PowerPoint 2007-365, not Office Open XML It will be available in 25.8.0. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
This is more complicated, this might actually be the wrong (older, ECMA) filter. Let's investigate further.
Aron Budea committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/core/commit/82c5d55a9d21b889ecfb71253b4b04084c2e22b9 Revert "tdf#165180 convert-to: prefer PowerPoint 2007-365, not Office Open XML" It will be available in 25.8.0. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.