One of ours backup tasks is showing the error above:
Access to the following local destination: dff14f55-d98d-49a0-99ac-fd2c2243f7c0-MBS-7248971f-90fc-4780-a4d3-d7360d5ef865 was denied. 1 file was not backed up. No sufficient permissions
The services of Cloudberry is running with Local System Account (I'm trying with built-in WIndows Server Administrator right now).
I recommend you examine the backup history for that plan to see what file is causing the problem. It could be an EFS encrypted file or some other security issue causing the inability to back up that file. It may be something you can address without changing the service account.