SYMPTOM:
In Strategy Mobile 9.4.1, when an attribute is set to be grouped horizontally, it displays as intended when a single attribute is selected in the group by dropdown, as shown below:

However, when the group by dropdown is set to All, the attribute fails to render horizontally, as shown below:

Below is what is supposed to display, as seen in Strategy Web:

Notice that after Atlanta repeats 3 times, San Diego still appears to the right of it.
CAUSE:
This is a limitation with Strategy Mobile 9.4.1, as horizontal grouping on Mobile for the All option is not currently supported. A request has been logged to address this issue.
ACTION:
Contact Strategy Technical Support for an update on this issue.
The Strategy Internal Reference Number for the issue discussed in this technical note is 755565.