Saving as WEBP corrupts first pixel

[esenthel]

If I save any image as WEBP format, then always (0,0) pixel will lose its RED color data.

For example if (0,0) pixel is RGB (20,230,255) then after save+load of WEBP file, it gets (0,230,255) RGB (RED is lost).

I'm using XnView 2.32

[xnview]

ok, right...