Copy staging texture to 8xSampled target, error not compatible textures

[WhitePhoera]

On windows, i try to do async texture loading(well, async as possible).
i create staging texture first:

var td = TextureDescription.Texture2D(width, heigth, 1, 1, PixelFormat.R8_G8_B8_A8_UNorm, TextureUsage.Staging);

then i map/fill/unmap staging texture, then i create target texture:

var td2 = TextureDescription.Texture2D(state.StagingTexture!.Width, state.StagingTexture.Height, 1, 1, PixelFormat.R8_G8_B8_A8_UNorm, TextureUsage.Sampled, TextureSampleCount.Count8);

when i try to copy texture from staging to target one:

CommandList.CopyTexture(state.StagingTexture, texture);

i have an exception:

Source and destination Textures are not compatible to be copied.

If i try to add TextureSampleCount to staging texture, on DX11 backend i have an error, on Vulkan i have texture with black lines.
Do i miss something?