Help on gray area after voxel remesh of two object

Hi,

After using voxel remesh 2 object together as one, I get a gray shade area. Anyone know how to fix that from happening?

Thanks.

clic on Wire to see what is happening, it’s help me a lot
or change the remesh size, at this state you can remesh a lot of times

I figured it out. I guess when voxel remesh multiple pieces, it created multiple layers section. After merging those layers, it removed all those materials/paint that mistakenly done. Well always new thing to learn and know.

it 's good to know that only paint