Hello Father Priest,
The behavior that you're seeing is actually expected; the current PDA module does not support array and cluster controls and indicators appearing on the front panel of PDA VIs at run-time. If you want more information on this topic, you can view the latest version of the
LabVIEW PDA User Manual. This information is found on page 5-5.
Assuming that you are using a cluster of controls because you have your data stored in a cluster as well, you can work around this PDA limitation by unbundling the values from the cluster and then passing them directly to controls (that are not organized in a cluster).
Hope this helps!