WHERE->WHERE only returns the first result?

Question

Laravel

Good afternoon.

$fixе = Fix::whereDate('date', $date)->get();
$glOd = Od::whereDate('date', $date);
foreach ($fixе as $fix){
$od = $glOd->where('fix_id', $fix->sm_id)->get();
}

returns the result only once, that is, as a result, an object consisting of 157 is returned to me, but $ od is empty in all but the first, although if you make a query in the database, then there is data.