Hi @darylbowman,
In Acumatica 2025 R1, the “Default Printer ID” field disappears not because Device Hub is disabled or misconfigured, but because the mailing definition itself is being ignored by the system.
This happens when a custom or alternate report is selected in the Report column on the Mailing & Printing tab of a Preferences screen (such as AR101000, SO101000, or Customer Management Preferences).
Due to a product defect tracked as AC-274352, the system fails to resolve the mailing configuration through its inheritance chain:
Preferences → Class → Profile Entity
Because the mailing setting cannot be located, the system treats it as invalid and ignores it completely. When a mailing definition is ignored, all Device Hub-related bindings (including the Default Printer ID field) are not loaded — which is why that field disappears.
So, although it looks like a Device Hub issue, it is actually a mailing-definition resolution defect in 25R1.
Workaround
Instead of overriding the report in Preferences, apply the override at the Class level or Profile Entity level.
Once the mailing configuration is resolved correctly, the Default Printer ID field will appear again, and printing/emailing will work as expected.
Hope this helps clarify!