Try any --convert-to operation using a debug build => there is updater activity logged: > warn:desktop.updater:32556:36760:desktop/source/app/updater.cxx:620: download did not succeed. Error code: 404 > warn:desktop.updater:32556:36760:desktop/source/app/updater.cxx:786: error during the update check: download did not succeed There must not be attempts to initiate updater activity in headless operation.
Mike Kaganski committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/core/commit/02f93a9d1763336eb655ec13d1cfd1e114246b34 tdf#167676: do not run updater tasks in headless mode 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.
Mike Kaganski committed a patch related to this issue. It has been pushed to "libreoffice-25-8": https://git.libreoffice.org/core/commit/8a8cf61700d08e166ff206f2d291a16f5f6662ee tdf#167676: do not run updater tasks in headless mode It will be available in 25.8.3. 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.