1. Create a new database. 2. Create a new form in Design View. 3. Save the form. 4. Close the form. 5. Try to open the form (or edit it). => The document "Form1" could not be opened. SfxBaseModel::loadFromStorage: 0xf26(Error Area:Io Class:Format Code:38) This is caused by a mismatch between ODF versions of the form's content.xml (1.4) and its version in the package's manifest.xml (1.2). This mismatch was created in commit 16de54a5c47fbc4691ee099c1f7bb559a8fe11ac, to workaround problems appeared after commit 519d96fd8b83ef4c61576d87b58f97b7e6e6e3c6 (which started to write the ODF version to manifest) in older versions. But that workaround reversed the problem, so that the newer versions having that patch started to generate the inconsistency. The relevant change that prevents opening forms with ODF version mismatch is commit 0a0f205775807d63e7f6dd910de368bb12b11a49 (landed in 5.4).
https://gerrit.libreoffice.org/c/core/+/179867
Mike Kaganski committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/core/commit/61c12dd1c80e4b7227a614227bb690b00feb78ad tdf#164619: bite the bullet, and write the correct ODF version 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.
Mike Kaganski committed a patch related to this issue. It has been pushed to "libreoffice-25-2": https://git.libreoffice.org/core/commit/03da31134ecd7a229c909dcd4580b171d227e698 tdf#164619: bite the bullet, and write the correct ODF version It will be available in 25.2.0.2. 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.