Ultrastudio 4k Mini - Input buttons 1&2 don't do anything

Recently purchased a handful of the Ultrastudio 4k Mini's. I thought they should work similar to how the web presenters worked.
IE Pressing the 1 or 2 button would switch the device from HDMI input to SDI input.
When I first purchased the web presenters they also didn't work unless I updated the firmware. I can't seem to find any firmware updates for the Ultrastudio4k's.
The input will switch if I go into the menu, or use the software to change in inputs.
Any ideas?
IE Pressing the 1 or 2 button would switch the device from HDMI input to SDI input.
When I first purchased the web presenters they also didn't work unless I updated the firmware. I can't seem to find any firmware updates for the Ultrastudio4k's.
The input will switch if I go into the menu, or use the software to change in inputs.
Any ideas?