Matrix Table resizing columns with Autosize column...

mgw71 · ‎07-07-2025

Turned autosize width off in column headers, manually adjusted column widths, matrix table is still autosizing column widths when slicer selection changes. Happens even with word wraps turned off is this a known bug if so very frustrating that it can not hang on to basic formatting!

catharinadavies · ‎08-28-2025

Hi, I understand how frustrating this is, but I am using a very simple work around:

Where you have the Values (ie columns) rename the column Name: - 'Column Name' (spaces) -

This makes the matrix think the column, using auto spacing, needs to be wider, to account for the larger column title. Turn the text wrap off for the columns.

I love simple solutions.

v-kpoloju-msft · ‎07-07-2025

Hi @mgw71,

Thank you for reaching out to the Microsoft fabric community forum. Also, thanks to @grazitti_sapna, @Ritaf1983, for those valuable insights on this thread. Here I mentioned workaround that might be resolve the issue. Please have a look into it.

This is a known limitation in the Power BI Matrix visual. While the “Auto-size column width” setting disables automatic resizing, the Matrix visual can still recalculate and override your manual column widths when slicer or filter interactions cause:

New or removed columns (e.g., categories appearing/disappearing)
Changes in column header text length
Structural re-renders due to dynamic column values

This is not currently classified as a bug, but rather a by-design behaviour of the visual rendering engine.

The current workaround is: In the Matrix visual: Set Auto-size column width = Off under Column headers, Values, and Subtotals. Set Word wrap = Off.

After applying the above, manually resize your columns again. Avoid dynamic slicers that change the column layout. If possible:

Use fixed columns by reshaping the data model
Move filters from columns to rows or the filters pane

If the issue persists, try building a new matrix visual with these settings applied fresh.

Since this is a UI behaviour and not a technical error, we recommend to raise a ideas forum through the below mentioned link: Fabric Ideas - Microsoft Fabric Community

If already raised a ideas forum on this type of threads please upvoting. The Ideas portal is actively monitored by the Power BI product team, and feedback here helps shape future enhancements.

Let me know what you find after giving these steps a try happy to help you investigate this further.

Thank you for using the Microsoft Community Forum.

v-kpoloju-msft · ‎07-10-2025

Hi @mgw71,

Just checking in to see if the issue has been resolved on your end. If the earlier suggestions helped, that is great to hear. And if you’re still facing challenges, feel free to share more details happy to assist further.

Thank you!

grazitti_sapna · ‎07-07-2025

Hi @mgw71

Yes, this is a known and long-standing issue in Power BI.

Even when "Auto-size column width" is turned off in a Matrix or Table visual, column widths can still reset when:

A slicer selection causes some values to disappear or new values to appear.
There are measure changes or dynamic columns affecting the layout.
Field formatting or visibility changes based on filters or bookmarks.

Workaround:
Switch to Table visual instead of Matrix
If you're not using row/column groups heavily, consider using a Table instead of a Matrix, which tends to behave better with manual formatting.

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