MST folder does not show devices

Hi all,
Has anyone experience losing one of the devices in the /dev/mst folder after a reboot?
How can we bring it up?
We have two bluefield2 cards, and when trying to bring up the second card after running “sudo mlxfwreset -d /dev/mst/ -l 3 -y reset” I rebooted the system, and now it doesn’t show the second card in the list of devices in /dev/mst/ folder.
Any ideas on that?