Error recording a set

I was recording a set and at some point the recording time went back to zero. When i finished, there were 3 files: 

01 REC-2025-02-17(2) - 1,9MB Audio Waveform

01 REC-2025-02-17(2).cue - 2Kb Document 

REC-2025-02-17.rbrec - 783,2MB Document 

i changed the .rbrec to .wav and was able to play 1h14m. 

What might have happened? Why did it split the file and stopped recording before it ended? 

Thank you