Multicoloured Screen

I’ve been playing D4 for a few hours. I was AFK and my screen times out after 15 mins. I wiggled my mouse and my in game screen a brown colour but I didn’t think much of it. I log back in and my screen is multicoloured and loading screens are completely blue.

Here are my specs -

CPU:
Intel® Core™ i9-11900KF - 8-Core 3.50GHz, 5.10GHz Turbo - 16MB Cache, Ultimate OC Compatible.

GPU:
AMD Radeon™ RX 7800 XT - 16GB GDDR6 - HDMI, DP - RDNA™ 3 Architecture, Infinity Cache™.

RAM:
64GB (4x16GB) DDR4/3600mhz Corsair Vengeance Pro SL RGB Memory.

MOBO:
MSI MPG Z490 Gaming Plus: ATX w/ USB 3.2, 2x M.2.

PSU:
Corsair RM1000e 1000W 80+ Gold Low-Noise ATX 3.0 Fully Modular Gaming Power Supply.

Monitors:
(Main) Lenovo Legion Y27qf-30 (2560x1440@240Hz).

(Secondary)
Lenovo L22e-30 (1920x1080@60Hz).

Storage:
WD Blue SN580 M.2 NVMe PCIe SSD 2TB - 4150MB/s Read & 4150MB/s Write - for OS.

Samsung 870 QVO 2.5" SSD 8TB - 560MB/s Read / 530MB/s Write - For games.