Thank you for your feedback.

The USB sticks will won’t work for sure, let’s focus on the HDD’s.
Please make sure the drive freshly formatted with uTrack-X32, no another content on the drive.
Previously we had an option to create a new take (gapless) during the recording. This can lead similar issues what you described above. Now in the current firmware release we don’t allow to create a new take (or multiple) within one minute. Could you please check again the frimware are updated to 3865 version?
Once you have set up the system make a test recording and try to create a new take after one minute and check the status on the uRemote.