Ja takie rzeczy robię zazwyczaj na x86_64.
Oto wynik na Openwrt 22.03-snapshot
pusto przed:
root@OpenWrt:~# ll /mnt/contener1
drwxr-xr-x 2 root root 4096 Oct 22 21:42 ./
drwxr-xr-x 5 root root 4096 Oct 22 21:42 ../
root@OpenWrt:~# ll /mnt/contener2
drwxr-xr-x 2 root root 4096 Oct 22 21:39 ./
drwxr-xr-x 5 root root 4096 Oct 22 21:42 ../
2 kontenery jeden z ext4 drugi z FAT:
root@OpenWrt:~# ll
drwxr-xr-x 2 root root 4096 Oct 22 20:47 ./
drwxr-xr-x 18 root root 4096 Oct 21 22:52 ../
-rw------- 1 root root 10485760 Oct 22 21:40 verafat
-rw------- 1 root root 10485760 Oct 22 21:06 veravolume
a tu po kolei otworzenie, montowanie i wylistowanie
root@OpenWrt:~# cryptsetup --type tcrypt --veracrypt open veravolume contener1
Enter passphrase for veravolume:
root@OpenWrt:~#
root@OpenWrt:~# cryptsetup --type tcrypt --veracrypt open verafat contener2
Enter passphrase for verafat:
root@OpenWrt:~#
root@OpenWrt:~# mount /dev/mapper/contener1 /mnt/contener1
root@OpenWrt:~#
root@OpenWrt:~# mount /dev/mapper/contener2 /mnt/contener2
root@OpenWrt:~#
root@OpenWrt:~# ll /mnt/contener1
drwxr-xr-x 3 root root 4096 Oct 22 21:06 ./
drwxr-xr-x 5 root root 4096 Oct 22 21:42 ../
drwx------ 2 root root 16384 Oct 22 21:06 lost+found/
root@OpenWrt:~# ll /mnt/contener2
drwxr-xr-x 2 root root 16384 Jan 1 1970 ./
drwxr-xr-x 5 root root 4096 Oct 22 21:42 ../
-rwxr-xr-x 1 root root 10 Oct 22 21:37 FAT_OK*
U mnie nic nie wyskakuje a jednak montuje 
Xiaomi AX3000T @ Netgear R6220
* DVBT2 - T230C *