Created attachment 204045 [details] Sample XLSX (one image hidden, another visible) Open and save either of the attached samples back to their formats. Both of them have a visible and a hidden image. After reopening, or after opening the result in the respective Office application, both images are shown. Observed with LO Version: 26.2.0.0.alpha0+ (2f5df988923560bcc0f822c9db39f6ccab0cc5a1) / Windows. When opening the original files, the hidden image is actually hidden, so this is an export issue.
Created attachment 204046 [details] Sample PPTX (one image hidden, another visible)
Already in 4.0.0.3.
Aron Budea committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/core/commit/a913faf181afb8b8718711eba0ad0cceec961f01 tdf#169496 oox: hidden images in PPTX/XLSX shown after roundtrip It will be available in 26.2.0. 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.
Aron Budea committed a patch related to this issue. It has been pushed to "libreoffice-25-8": https://git.libreoffice.org/core/commit/5a22c7cd10014ec6919b19a00b2861e7be4ce8d0 tdf#169496 oox: hidden images in PPTX/XLSX shown after roundtrip It will be available in 25.8.4. 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.