I've found the column headings have disappeared. It didn't happen when I last used it (a couple of months ago). Updated to the newest version, but it is still an issue. Found a thread in the Support Category that indicated a fix, but I don't really understand it. Would someone please be able to give me step by step instructions?
Do you mean this one?
Where exactly do you need additional help around finding/renaming mp3tag.cfg or usrfields.ini?
open the configuration folder with File>Open configuration folder
open the folder data in the configuration folder
Close MP3tag
rename the file usrfields.ini to something like _usrfields.ini
restart MP3tag and see if the labels have returned.
If not, rename file back to the original name again.
Hi. It's v3.36.1 and I'm on Windows (11).
I needed help understand which files I was renaming. Followed ohrnkino's advice below, which has partially fixed the problem, but not fully.
Those are stored in the same location, only this time the file columns.ini
Ha. That I should have been able to work out for myself. 
Cheers both for your help. All sorted.
Just out of interest: what was saved in the original files?
Or where they completely empty?
Perhaps you could supply these for further analysis.
Sure. I'd deleted the original columns file, but here's the data from the userfields one. (copied from Notepad)
[#0]
name=
value=TITLE
enabled=1
size=1
[#1]
name=
value=ARTIST
enabled=1
size=1
[#2]
name=
value=ALBUM
enabled=1
size=1
[#3]
name=
value=YEAR
enabled=1
size=4
[#4]
name=
value=TRACK
enabled=1
size=4
[#5]
name=
value=GENRE
enabled=1
size=2
[#6]
name=
value=COMMENT
enabled=1
size=1
[#7]
name=
value=ALBUMARTIST
enabled=1
size=1
[#8]
name=
value=COMPOSER
enabled=1
size=1
[#9]
name=
value=DISCNUMBER
enabled=1
size=3
[#10]
name=
value=_DIRECTORY
enabled=1
size=1
Thank you.
This only shows the symptom: no data for the name.
I have no idea why, though.
