Memory Integrity (Core Isolation) keeps disabling after reboot on Windows 11

Hello,

I have been trying to enable Memory Integrity (Core Isolation) on my Windows 11 system, which is required for FaceIt Anti-Cheat. Although I can enable it in Windows Security, it gets automatically disabled after every restart.

System details:
• ASUS ROG STRIX Z490-F GAMING motherboard
• Windows 11 64-bit
• Removed Broadcom WiFi adapter previously

What I have tried so far:
• Reinstalled Windows 11 from scratch
• Updated all drivers including LAN and USB controllers
• Removed devices with warnings from Device Manager
• Cleaned old device keys from registry
• Ran system file checker with no issues
• Changed all relevant BIOS settings that could affect Memory Integrity (disabled Fast Boot, Legacy USB support, XHCI Hand-off, etc.)
• Disabled hibernation
• Tested in Safe Mode with no change

Despite all efforts, Memory Integrity remains disabled after reboot without any error message.

Could you please assist me in identifying the root cause or suggest a solution?

Thank you in advance.

Best regards,
Alex