when i upgraded from debian squeeze to wheezy (xca version 8.1 -> 9.3) i am no longer able to open my databases. passwords don't work.
to verify this i downloaded the windows version 9.3 from sourceforge and was unable to open the database that way. i then downloaded the 8.1 version, installed that and was able to open my databases again.
my passwords are random 64 character strings and include symbols.