The RDC6612U controller failed to recognize during the large-format matching test

My device uses the Ruida control system RDC6612U. During the large-format matching test, the target device was not recognized. At the start of the test, the system passed its self-check, but after connecting the large-format module, the controller displayed an inability to recognize the signal, causing the matching process to be interrupted. Any suggestions? Thank you all!