Hello Marius,
> Further information on my request below. > > I have uninstalled 64-bit Firebird 2.5 and installed 2.1.4 64-bit > Firebird. > > With this configuration I can restore the backup without the crashes. > > Does this mean that Firebird 2.5 64-bit has a bug present? > It's unclear now - what happened with your database. To clarify it, make metadata only backup and repeat steps. If crash will occur again with metadata only backup, create ticket in tracker.firebirdsql.org - attach there compressed metadata fbk and steps to reproduce the crash. Regards, Alexey Kovyazin www.ibsurgeon.com [Non-text portions of this message have been removed]