As part of the October 2025 ArcGIS Online update, we got the ability to turn on this setting in Experience Builder to provide accessible labels for widgets:
I've started a tech support case with Esri, but it seems that unless you also opt in to using the new theme settings, enabling the accessible labels results in the tablet and mobile device views of your experience not working, e.g.:
^ The experience above still looks totally as expected in the builder. It's just in preview mode (or published) that you can see the error.
I wanted to mention this as I nearly enabled this option for a bunch of experiences (while I'm avoiding using the new theme options for reasons I won't get into here). This would have resulted in me having to either undo a lot of work or have to tell people to not look at the tablet or mobile device views for the time being.
Accepted Solutions
Per our investigation, it has something to do with the combination of auto layout in small/medium screen + page header, if you enable the "Skip to" feature. Not necessarily related to the new theme, though. The fix will be in the next upcoming release.
The current workaround for you is -
You can change the layout to Custom to avoid this bug. If you want to customize the header, you can change it in the desktop layout, use Auto, and then Custom to sync to work around it.
Let me know if that works for you, and sorry for the inconvenience. Thank you for bringing this up.
Per our investigation, it has something to do with the combination of auto layout in small/medium screen + page header, if you enable the "Skip to" feature. Not necessarily related to the new theme, though. The fix will be in the next upcoming release.
The current workaround for you is -
You can change the layout to Custom to avoid this bug. If you want to customize the header, you can change it in the desktop layout, use Auto, and then Custom to sync to work around it.
Let me know if that works for you, and sorry for the inconvenience. Thank you for bringing this up.
