MS SQL Server 2012 Error on TLog Backup I have a MS SQL Server 2012 installation on which I am restoring a SQL 2005 .bak which includes some full-text catalogues

The original .bak has no conflicts with 2012 (as the migrate advisor was used to clear all of these). Upon running a TLog backup I receive the following error message:

Executing the query "BACKUP DATABASE [databaseName] TO  DISK = N'..." failed with the following error: "An error occurred while processing 'BackupMetadata' metadata for database id 5 file id 1. Inconsistent metadata has been encountered. The only possible backup operation is a tail-log backup using the WITH CONTINUE_AFTER_ERROR or NO_TRUNCATE option. BACKUP DATABASE is terminating abnormally.". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly.

After much searching I am at a loss as to why. Any suggestions greatly appreciated.
Turns out we needed to remove the full text catalogs from 2005 then take the backup. We then recreated the catalogs in 2012 and all is good. Following a single full backup, the t-log maintenance plan runs fine.