Hello, since the bug box isn't working I'm posting here. When "Resize display to fill window size" is enabled, display size isn't scaled correctly even when the resolution is suitable for integer scaling.
The issue only happens in DirectX 9 mode. DirectX 11 mode appears to scale properly without artifacts.
Artifacts in DX9 mode at 2X:
No artifacts in DX11 mode at 2X:
This was reported back in 2016 and is still an issue. Original thread:
Please look into fixing this, thanks for your time.
EDIT: Related https://community.clickteam.com/threads/82240-BUG-Pixel-perfect-scaling-does-not-work-in-DirectX-9