Issue in mounting directory

I am able to mount /top/dir1 directory but not /top/dir1/jack.

These are my user’s properties

%% id -u
%% id -g

And these are the permissions of the two directories:

%% ls -l /top/ /top/dir1

total 4
drwxrws--- 13 root jgrp 4096 Dec  5 18:32 dir1

total 1
drwxrwsr-x  4 jack   jgrp 4096 Nov 29 00:00 jack

When I try to mount /top/dir1/, it works without any issue and inside the docker I am able to see and access directory jack too

docker run --mount type=bind,source=/top/dir1/,target=/home/dir1 --user 12097:1000 -it docker-name:0.1 bash

But it errors out if I try to mount /top/dir1/jack

docker run --mount type=bind,source=/top/dir1/jack/,target=/home/dir1 --user 12097:1000 -it docker-name:0.1 bash

docker: Error response from daemon: invalid mount config for type "bind": stat /top/dir1/jack/: permission denied.

on the prompt where I am trying to run the docker, I am able to do ‘stat /top/dir1/jack’
Any pointers?