I have a problem with Time Machine backup. I use an iMac 27" (2017) with MacOS Mojave and Time Machine with external 1Tb HDD.
When TM has four or five copies, TM app show an error:
Time Machine couldn’t complete the backup to “TimeMachine”.
Unable to complete backup. An error occurred while creating the backup folder.
Latest successful backup: Yesterday, 09:29
I thought that is external hdd problem so in my Windows Laptop, format external hdd in low-level and format say all ok.
External HDD is connect to USB 3.0 hub, last time, connect external HDD on iMac directly but the same problem…
What happen with TM? Is HDD problem?