MacOS Sequoia 15.7.5 killed Continuity on my Hackintosh

[Anubis111]

Attach the PR files to have a look!

Hi,
I have attached a ZIP with my current EFI folder (serials/SMBIOS data redacted), an IORegistryExplorer dump (IOReg) from macOS Sequoia 15.7.5, and a verbose boot photo showing where the system pauses around AppleKeyStore / AirPlayXPCHelper / bluetoothd.

Hardware / setup:
Asus Prime H270-Plus, Intel i7
Intel iGPU (HD 530) enabled with framebuffer patches (not fully headless), dGPU AMD Radeon RX 570 used as primary display GPU
SMBIOS: iMacPro1,1
Fenvi T919 (Broadcom) in PCIe slot for Wi‑Fi and Bluetooth
OpenCore config built and maintained by myself over the years, regularly updated for newer macOS versions

macOS / OCLP / kexts:
macOS Sequoia 15.7.5 (15.7.4 was working fine)
I am using OpenCore Legacy Patcher only for Broadcom Wi‑Fi/BT patches for the Fenvi card
To make the OCLP Broadcom patch work with my own OpenCore EFI, I manually added:
IOSkywalkFamily.kext
IO80211FamilyLegacy.kext
into my EFI/OC/Kexts and configured them in config.plist
Lilu, WhateverGreen, VirtualSMC, AppleALC and the other main kexts are up to date

Main problem (Continuity / Continuity Camera):
For years, Continuity and Continuity Camera worked perfectly on this Hackintosh:
iPhone was detected automatically over Wi‑Fi
iPhone as camera + microphone in Zoom and other apps without any hacks

After updating from Sequoia 15.7.4 to 15.7.5, Continuity partially broke:
iPhone is still visible in Finder over USB, photos can be imported
Continuity Camera only works when the iPhone is connected with a USB cable
Over Wi‑Fi the iPhone is no longer detected as a camera/microphone

On the same macOS Sequoia 15.7.5 and the same iOS version, Continuity Camera still works normally on my real MacBook Pro, so the issue seems to be Hackintosh‑specific.

Boot / AppleKeyStore logs:
I boot with -v and see repeated AppleKeyStore messages related to AirPlay and Bluetooth:
AppleKeyStore: unexpected session uid: -1 requested by: AirPlayXPCHelper (…)
AppleKeyStore: operation failed (sel: 7 ret: e00002c2 / e00002f0)
similar unexpected session uid and operation failed messages for bluetoothd
Before, these messages appeared very briefly and the boot continued almost immediately
Now there is a noticeable pause around the AppleKeyStore messages (subjectively shorter after some recent changes, see below, but still visible)

OpenCore patches (Kernel -> Patch):
Skip Board ID check -> Enabled = true
Disable RTC wake scheduling -> Enabled = true
Skip AppleKeyStore T2 init wait -> Enabled = false
Enable TRIM for SSD -> Enabled = false (TRIM works via macOS and is not needed for NVMe/AHCI here)

After disabling the AppleKeyStore T2 patch, the pause at AppleKeyStore during boot feels shorter, but the Continuity Camera issue over Wi‑Fi is still present.

Other notes:
OpenCore config.plist structure validates fine (no syntax errors)
I corrected an old placeholder DevicePath in my config (Path to BOOTX64.EFI) using a fresh DevPath from OpenShell (bcfg boot dump), so that part should now match the real NVMe/EFI partition
I do not have OpenCore boot logs (OC log file) despite having Debug settings enabled; this has been a long‑standing limitation on this machine
Instead, I provide IOReg + EFI and a verbose boot photo showing where the system pauses around AppleKeyStore / AirPlayXPCHelper / bluetoothd

Question:
Could you please take a look at my EFI and IOReg and advise:
whether the current Broadcom / OCLP Wi‑Fi + BT setup (Fenvi T919 + IOSkywalkFamily.kext + IO80211FamilyLegacy.kext) looks correct for Sequoia 15.7.5 on iMacPro1,1 SMBIOS with RX 570 and enabled HD 530 iGPU with framebuffer patches,
whether the AppleKeyStore errors from AirPlayXPCHelper and bluetoothd suggest a misconfiguration in my OpenCore/ACPI/kexts, or if this is more likely a side effect of OCLP’s Broadcom patches on Sequoia,
and if there is anything obvious I should change to restore full Continuity Camera over Wi‑Fi (as it worked before on 15.7.4)?

Thank you in advance for any hints. If needed, I can provide additional verbose boot photos focusing on the AppleKeyStore / AirPlayXPCHelper / bluetoothd messages.