Some MP3 files won't show on DJ deck via USB stick

I have a handful of MP3 files that when plugged into a Denon DN-HS5500 DJ Deck via USB stick will not show up. They show up on the PC fine. Could it be something to do with the encoding? I thought bringing them up onto Audacity and exporting them fresh as MP3 and editing the tags may help but to no avail.

The audio properties info is below for 1 of the tracks. I’m not very expert on anything like this so I wouldn’t know if something is wrong;

Size 3.44 MB (90% Compressed)
Original Size 33.36 MB
Length 3 minutes 2 seconds
Channels 2 (stereo)
Sample Rate 48 KHz;
Bit Rate 158 kbps
Encoder LAME 3.99r
Encoder Settings Variable Bit Rate -V 4 (Medium)
Audio Quality Medium (Lossy)
Contains Album Art, ID Tag [ID3v2.3]
Channel Mapping Left, Right
File Deorro - Yee (LNY TNZ Remix)
Type VLC media file (.mp3) [.mp3]

Don’t know if anyone can see anything or has any other general ideas as to why this may be occuring?

Thanks for your time guys!

According to the Denon manual, MP3 files must be:
MPEG-1: Audio Layer-3 40-320 kbps, f/s 44.1 kHz, STEREO
ID-3 Tag: V1.0, V1.1, V2.2, V2.3, V2.4 (ASCII + ISO8859-1 (West European))

Before exporting from Audacity, ensure that the “project rate” is 44100 (bottom left corner of the main Audacity window.
For both the file name and any metadata, use only letters a-z, A-Z, numbers 0-9, space and underscore.

Ahhh well spotted! I can confirm the 6 tracks I am having trouble with are all 48khz. The others that are all working are 44.1khz… Hopefully this solves it!