USB drives are known for being reliable and convenient. If your clips are not being saved on USB for a system that is working, it is possible the drive has become corrupted. The most common cause is internet dropouts during clip saving.
To troubleshoot your USB drive, the easiest action is to reformat the drive using exFAT, on your Mac or PC computer. However, it may be best to use a new drive, in case a manufacturing defect is the cause of drive failure.
It is very important to tap Safe Eject button in the Blink app before you remove the USB drive from the Sync Module.
Safe Eject the USB drive from a Sync Module 2
1. To find Safe Eject USB in the Blink app, find the Sync Module banner, and tap it.
2. In the Sync Module screen, tap Local Storage.
3. On the Local Storage screen, tap Safe Eject.
4. Wait to receive the "USB Disconnected" message. When the USB icon changes to 'inactive' as shown below, you can remove the drive from your Sync Module 2.
5. When you re-insert the USB drive, the Sync Module 2 will attempt to reconnect.