RTTS some files play others will not

[crewe22]

After a cursory search, I haven't stumbled on to a fix for my SOTS issue so apologies if it's been solved and I overlooked the thread.
I'll provide as much info as I can to be helpful.
I wanted to increase the volume and edit some of the MP3 files in my RTTS career.
I ended up completely revamping everything, including naming of files since I had many duplicates with different titles, categories and the like.
I'm on a Mac, using a program called Audacity and exported all files in uniform fashion.
Existing files in SOTS were deleted and PS4 restarted, USB drive was cleaned of all old files, holding only the newly exported data.
I enter RTTS, load my player, head to SOTS, manage files and import, all of which are successful.
At the playlist creator screen, I browse through checking files intermittently to ensure they all work, and they don't.
I'll have, for instance, one named Stadium organ1 which will play fine, but, Stadium organ2 will not.
I've scoured these files for any rhyme or reason as to why it fails with no luck.
Sampling rate does not factor as a problem since files will and won't play with different rates. Same with number of audio channels or stereo, same with files that have and have not been edited and so on.
Some files appear in all caps, some don't. Of those, some will play and some will not.
I intended to delete all the MP3 data before exporting, such as no artist name etc for stadium effects. On songs, I did leaving e the artist, song name and album in there and all songs do play by the way (artwork disappeared though, but I can live with that)
Also tried a different USB drive.
I can't think of anything else to provide so hopefully someone can clue me in on what ?I did wrong.
Thanks for any suggestions.

[crewe22]

Re: RTTS some files play others will not

Apparently I'm the only one with this issue, but in case others run into this problem, here's what I discovered.
I imported the files I wanted to amplify or edit and then, upon exporting, I changed the name and tags.
As I noted before, some worked, most did not, but I found that if I left that information the same, I could, after exporting, right click and alter the file name in that manner. I still don't understand why some files are capitalized upon import to SOTS but it's moot at this point.
One file still won't play and I can't figure that out, but overall I'm considering this a successful result since I only failed in my secondary goals.