Exporting resized textures results in artifacts

I'm experiencing an issue when exporting 4K project textures to 2K images. When I do this, I get a lot of strange random noise in my normal map (and likely in other maps as well, but not verified).

If I change my project to 2K, then export 2K images, the result is really blurry/soft, but does not result in same noise issue. See the following normal maps. One was exported from a 2K project as 2K textures. The other was exported from a 4K project as 2K textures.

Is there any way to improve the quality of the export resizing? Doesn't this app benefit from Adobe resizing tech now? If I load the 4K textures into Photoshop and resize, they look even better than the 2K project exports. Almost as good as the original 4K images.