New Button Slicer: Issue with the Grid type of Arrangement

[AlenaT]

Dear MS Power BI Team,

Since ± the beginning of October 2025, I have noticed an issue that the "Grid" type of Arrangement is broken on the service side:

Expected: in case of having 4 columns out of 6, an extra space on the right side left for 2 empty columns

Once published to the service side, the buttons stretch across the entire width, same way as behave "Horizontal" type of arrangement:

Can you please pay attention to this service side issue and fix?

regards,

Alena

[Butterfly25]

I'm having a similar issue, but I have only 3 buttons vertical. In Power BI desktop it looks neatly aligned, in the Power BI service it looks like it tries to show 8 buttons. This results in overlapping text.

[mattlee]

For vertical List Slicer, this is a known issue ( manually set to value lower than 8, but still trying to show 8 ) and will be fixed next week. 

[AB_108]

The issue exists for Grid Slicer too. I had to reduce number of rows and increase number of columns to fix it. I have a horizontal scroll now, which is not ideal.

[MarcoVv]

Callout values inside the button visual now also are cut off and rearranged once published to service. Selected state hex code colors are also changed once published to service.

[hb380]

Am having the same issue - I'm using images inside my buttons and in desktop they are correctly proportioned in the New Button Slicer visual, however when published to service the buttons stretch out to fill the space which also increases the size of my images, making them all pixelated (because you can only set them as a percentage and not a fixed size but that's a separate issue...)

[mattlee]

New updates as part of Button Slicer GA should have given you more control over these format options. Please install October version of Desktop. Auto grid was not working correctly in both row and column directions, but now it does. If you want to disable auto-grid and have fixed dimensions, that will work now.
Image controls are also greatly improved and match CSS standards now.
Lastly, bottom padding was not being respected correctly, and in some cases this may result in slight content truncation at the bottom after this fix.

[AlenaT]

Hi @mattlee, Thank you so much for the good news about the fix! I noticed on Friday that a new "Auto-grid" toggle appeared for the new button slicer in the Power BI Desktop version. As you mentioned, when I switched it off, it started working as expected. Thanks for mentioning the changes regarding image controls: I have caught a breakdown of the image for another button slicer and adjusted it. So now it's good. Thank you very much for paying attention to the user's feedback, for being a bridge between users and the dev team, and for providing prompt communication! Huge thanks to the team for deploying the fix quite fast! This issue can be treated as closed.