# Odd behavior with a new column
**URL:** https://community.mp3tag.de/t/odd-behavior-with-a-new-column/71145
**Category:** Support
**Created:** [April 30, 2026, 12:03pm UTC](https://community.mp3tag.de/t/odd-behavior-with-a-new-column/71145 "2026-04-30T12:03:51Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@vlasktom](https://community.mp3tag.de/u/vlasktom)
#### Post date: [April 30, 2026, 12:03pm UTC](https://community.mp3tag.de/t/odd-behavior-with-a-new-column/71145/1 "2026-04-30T12:03:51Z")
Hello. I'm fairly new to mp3tag and would greatly appreciate some assistance.
I added the Subtitle column, but for some reason, the panel on the left side of the screen and the list in the middle of the screen do not sync.
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [April 30, 2026, 12:06pm UTC](https://community.mp3tag.de/t/odd-behavior-with-a-new-column/71145/2 "2026-04-30T12:06:24Z")
Tag Panel (on the left) and file list in the middle are independent from each other. You have to customize each separately.
If you have problem with a column definition, please show that as well in addition to the field definition for the tag panel.
See also the documentation on the [customization](https://docs.mp3tag.de/customization/).
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### Author:  [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)
#### Post date: [April 30, 2026, 12:24pm UTC](https://community.mp3tag.de/t/odd-behavior-with-a-new-column/71145/3 "2026-04-30T12:24:35Z")
In the column definition, the fieldname in **Value** (and **Field** : ) has to be enclosed in `%` characters like this:
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [May 7, 2026, 12:25pm UTC](https://community.mp3tag.de/t/odd-behavior-with-a-new-column/71145/4 "2026-05-07T12:25:16Z")
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