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Tray numbers may not be optional in Rx-Universe. For details, please see Order Numbers, Tray Numbers, PO numbers and Devices
Fix an issue that was causing blank selection to list clear blanks for a pre-treatment that could not be applied to a lens. This was only occurring when the pricing module was turned off.
Device interfaces
The VCA device interface, did not take into account that the ART auto-blocker can send both eyes in the same upload.
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