Opus Quad (Unsupported File during when playing)

During normal operation for about 20 minutes, it loaded all the tracks that were in the playlist without any problems (the playlist was previously exported from Rekordbox to USB). When selecting the next track, it loads an unsupported file, then I moved to the next tracks from the same playlist, which also told me that they were unsupported. 

After that, I decided to open another playlist on my USB and from which it loaded the tapes normally. After that, I go back to the previous playlist from which it didn't want to load tapes and after I clicked on the tape that it didn't want to load before, it loaded normally, and so I tried all the following ones and it loaded everything without any problems. 

So I had to change the playlist for him to get out of that bug he was in. Now I have a doubt whether it will happen to me somewhere in the club where I would be in trouble. So please pay attention to this bug. 

I updated the Opus Quad to the last firmware that was on your website right after I turned it on for the first time, so it is updated to the latest firmware. 

If there enyone