GPU Passthrough For Windows 11 Not Working (kvm: vfio: Unable to power on device, stuck in D3)

I am having issues passing through my new GPU to my Windows 11 VM. I previously had another AMD GPU hooked up to this same VM without issue. The new 9070 GPU will display the Proxmox terminal just fine, so I'm relatively sure there is no defect with the device.

CPU: AMD Ryzen 9 5900X
\ GPU: AMD RX 9070 XT
\ MB: NZXT N7 B550
\ PWR: 850 Watt

IOMMU: Enabled
\ Above 4G Decoding: Enabled
\ Re-Size Bar Support: Enabled

When I try to start the VM, I get this error:

error writing '1' to '/sys/bus/pci/devices/0000:08:00.0/reset': Inappropriate ioctl for device
\ failed to reset PCI device '0000:08:00.0', but trying to continue as not all devices need a reset
\ swtpm_setup: Not overwriting existing state file.
\ kvm: vfio: Unable to power on device, stuck in D3
\ kvm: vfio: Unable to power on device, stuck in D3
\ TASK OK

Device:

08:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Navi 48 [RX 9070/9070 XT] [1002:7550] (rev c0) (prog-if 00 [VGA controller])
\ Subsystem: XFX Limited Device [1eae:8811]

/etc/default/grub:

GRUB_DEFAULT=0
\ GRUB_TIMEOUT=5
\ GRUB_DISTRIBUTOR='lsb_release -i -s 2> /dev/null || echo Debian'
\ GRUB_CMDLINE_LINUX_DEFAULT="quiet amd_iommu=on iommu=pt rd.driver.pre=vfio-pci kvm.ignore_msrs=1 vfio-pci.ids=1002:7550,1eae:8811 disable_vga=1 disable_idle_d3=1"
\ GRUB_CMDLINE_LINUX=""

/etc/modules:

vfio
\ vfio_iommu_type1
\ vfio_pci
\ vfio_virqfd

/etc/modprobe.d/vfio.conf:

options vfio-pci ids=0000:08:00.0,0000:08:00.1
\ options kvm ignore_msrs=1
\ options vfio-pci ids=1002:7550,1eae:8811 disable_vga=1 disable_idle_d3=1
\ softdep radeon pre: vfio vfio_pci

VM.conf: I downloaded and added the ROM to the VM configuration file.

hostpci0: 0000:08:00,pcie=1,x-vga=1,romfile=9070xt.rom

At this point I feel totally lost in the weeds, and would greatly appreciate any help that could point me in the right direction to fix this. Thanks!

UPDATE: the error message changed somewhere between updating the BIOS and removing the rom entry from the vm.conf.

error writing '1' to '/sys/bus/pci/devices/0000:08:00.0/reset': Inappropriate ioctl for device failed to reset PCI device '0000:08:00.0', but trying to continue as not all devices need a reset swtpm_setup: Not overwriting existing state file.
\ kvm: ../hw/pci/pci.c:1654: pci_irq_handler: Assertion `0 <= irq_num && irq_num < PCI_NUM_PINS' failed. stopping swtpm instance (pid 10043) due to QEMU startup error TASK ERROR: start failed: QEMU exited with code 1