ок, выяснил ....

-rewrite ^/ /index.php last;
+rewrite ^/$ /index.php last;

-location ~* \.(?:ico|jpe?g|gif|bmp|png|js|css)$ {
+location ~* \.(ico|jpe?g|gif|bmp|png|js|css)$ {

-location ~* (?!\.(ico|jpg|jpeg|gif|bmp|png|css|js))$ {
location ~* (!\.(ico|jpg|jpeg|gif|bmp|png|css|js))$ {

спасибо за совет!