UNV camera intrusion not working

I have updated some UNV cameras (IPC3638SS-ADF28KMC-I1) from firmware GIPC-B6213.5.10.250604 to GIPC-B6213.6.5.251222 and Smart Events like Intrusion detection, line crossing stop working and it will save the settings but send an error to NX as below:

WARNING nx::vms::server::analytics::wrappers::DeviceAgent(0x7597d0e92b60): Integration failed to accept settings. Technical details: Method DeviceAgent::setSettings() of DeviceAgent for Front Gate of Engine of Uniview returned an error: [internalError]: Request http://192.168.4.66:80/LAPI/V1.0/Channels/0/Smart/SmartRule/IntrosionZone failed with device code 2 (Invalid Arguments)

Does anyone have any ideas? I'm guessing the firmware is too new for the internal UNV plugin.

Mark