Problem with selections - getting a warning that the pixels cannot be display

I've the same message when running an action that creates luminosity masks by using intersect channel and duplicate selection while pre-22.4 the same action wasn't showing any pop-ups.

Any way to disable this pop-up message?

The marching ants only show if the pixels are more that 50% selected. I can't translate your screen shot, but I do see "50%".

See this help page in the section "Define a feathered edge for an existing selection"

https://helpx.adobe.com/photoshop/using/adjusting-pixel-selections.html

"A small selection made with a large feather radius may be so faint that its edges are invisible and thus not selectable. If you see the message “No pixels are more than 50% selected,” either decrease the feather radius or increase the size of the selection. Or click OK to accept the mask at its current setting and create a selection in which you cannot see the edges."

~ Jane