Download this attachment https://bugs.documentfoundation.org/attachment.cgi?id=141473 for Bug 117092. Open the database with Version: 6.1.0.0.alpha0+ Build-ID: cc10b063235dcb25ad16f697ea0b1ff91a10bacb CPU-Threads: 4; BS: Linux 4.4; UI-Render: Standard; VCL: kde4; TinderBox: Linux-rpm_deb-x86_64@70-TDF, Branch:master, Time: 2018-04-18_13:21:28 Go to "Tables". Press "Later" in the migration-dialog. Try to open the table for editing, not for data. Base will crash immediately.
Most likely a dupe of bug 117044. Please, try to reproduce it with the latest master build from http://dev-builds.libreoffice.org/daily/master/ Thanks *** This bug has been marked as a duplicate of bug 117044 ***