Hi Jorge,
- Can you share the output of commands:
/sapdb/programs/bin/xinstinfo DEV
- What is value of parameter RUNDIRECTORYPATH
dbmcli on DEV> param_directget RUNDIRECTORYPATH
- There must be another copy of the backup templates under /sapdb/DEV/data/config with the name DEV_BackupTemplates.xml - Attach this file to the thread.
RECOMMENDATION:
Since you are using MaxDB 7.8 and the "Database Manager GUI" is an old software, some of the new features of 7.8 may not be known to the GUI, so I recommend you to download the Database Studio software from the service marketplace.
Regards, Yashwanth