USB Devices Eject on Sleep

Hello,

Problem: Randomly after waking from Sleep, USB storage devices are improperly ejected. Only USB 3.0 storage devices re-connect automatically, with USB 2.0 storage devices requiring the device to be physically unplugged and replugged. Duration of sleep does not appear to matter: Testing has been done at 10 second, 1 minute, 5 minute, 15 minute, and 1 hour intervals. Each have resulted in passes and fails.

Current hardware:

• Intel i9-9900k (stock speed)
• ASRock Z390 Phantom Gaming ITX/ac
• 64GB 3200MHz RAM (XMP Profile 1)
• 2TB Samsung Pro 960 M.2
• Sapphire Pulse RX 5600 XT 6GB
  

BIOS + Install Method:

• macOS Catalina 10.15.4 clean install
• Opencore 0.5.7
• BIOS: XHCI-Handoff -> Enabled
• BIOS: 4G Decoding -> Enabled
  

Devices Used to test:

• 8GB USB 2.0 HP thumb drive
• 64GB USB 3.0 SanDisk thumb drive
• 1TB Samsung T1
• 1TB Samsung T5
• 1TB SanDisk SATA -> USB 3.0 enclosure
  

Attempted Solutions:

1. USBInjectAll.kext + SSDT-UIAC.aml (tried with USB 2.0 HSxx ports set to both 0x00 and 0x03 for UsbConnector)
2. Disabled all C-states except C0 and C1E in the BIOS
3. Enabled/Disabled Energy Saver -> "Put Hard Drives To Sleep When Possible"
4. Enabled/Disabled Energy Saver ->"Power Nap"
5. Enabled/Disabled Energy Saver ->"Wake for Ethernet Network Access"
6. Set "pmset hibernatemode" to 0, 3, and 25
7. Set "pmset gpuswitch" to 1 and 2
8. Set "pmset proximitywake" to 0 and 1
9. Set "pmset standby" to 0 and 1
   

Each of the above solutions has been tried in a reset (original) environment, and in combination with each other. No dice.

EFI ZIP: https://gofile.io/?c=mwjjY9

config.plist: https://gofile.io/?c=kONkqk

SSDT-UIAC.aml: https://gofile.io/?c=cktKhp

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Anybody have any ideas what I can try from here?
I am quite stumped. Searching these forums and r/Hackintosh has yet to uncover anything new that I haven't tried. Thanks all!!!