mac, cards fall through "hand window" to "map window"

on mac i have the “map window”
then i open the “hand window” directly on top of “map window”
i draw 7 cards to the “hand window”

ACTUAL:
they dont appear in the “hand window”
they are just below in the “map window”
like they are falling through

EXPECT:
cards appear in “hand window”

if i reduce the size of the “map window”
so “hand window” covers part of “map window”

then i place card on “hand window part” which covers “map window” → card falls through to “map window” (FAIL)
then i place card on “hand window part” which does not cover “map window” → card stays in “hand window” as expected (OK)

fun fact: once the cards are in the “hand window”. i can drag/drop them to parts of “hand window” which cover the “map window”

plz help