COPYTO Option does not work for LOG file backup
It has been installed for quite a few years and recently the COPYTO statement of the "master..sqlbackup" statement no longer creates the copy.
I have dozens of other backup for Full and Differential backups in which the COPYTO works just fine.
If I run the exact same command using the command line SQLBackupC.exe (with minor syntax changes) the COPYTO option works just fine.
This command runs and the COPYTO option works as expected (files are in both locations):
SQLBackupC.exe -I MSSQLSERVER -SQL "BACKUP LOG [CORP] TO DISK = 'D:\sansqldata\backup_db\<database>\tran\<AUTO>.sqb' WITH COPYTO = 'E:\TestBackup\DBs\<DATABASE>\tran'"
This command run from inside SQL Server does not work (ONLY the ..\sansqldata\backup_db\... file exists - nothing in the ..\TestBackup\... folder):
EXECUTE master..sqlbackup '-SQL "BACKUP LOG [CORP] TO DISK = ''D:\sansqldata\backup_db\<database>\tran\<AUTO>.sqb'' WITH COPYTO = ''E:\TestBackup\DBs\<DATABASE>\tran''"'
Does anyone have any suggestions on what else I can test?