ASTER v2 loses GPU acceleration on one workplace after monitor wakes from sleep

[davidfnf]

Hi everyone,
I'm David, and I'm running ASTER v2 on Windows 11 Pro 23H2 with an AMD Ryzen 7 5700G and an NVIDIA GeForce RTX 3060. I have three workplaces configured: the host uses the RTX 3060, while the other two use displays connected to the motherboard's integrated graphics. Everything works as expected until the monitors enter sleep mode.
When one of the secondary monitors wakes up, that workplace often falls back to Microsoft Basic Render Driver. Video playback becomes choppy, hardware acceleration disappears in Chrome, and applications like OBS report that no compatible GPU is available, even though Device Manager still shows both GPUs working normally. The host workplace is completely unaffected.
I've already disabled Fast Startup, turned off PCI Express Link State Power Management, updated both AMD and NVIDIA drivers, reinstalled ASTER v2, and tested with different DisplayPort and HDMI cables. Windows Event Viewer doesn't show any display driver crashes, and restarting only the affected workplace doesn't help. The only reliable workaround is rebooting the entire system.
Has anyone running a mixed iGPU/dGPU ASTER setup seen GPU acceleration disappear only on one workplace after the display wakes from sleep? I'm wondering if this is related to WDDM multi-session device assignment or if there's another setting I should check.