Testing a NanoSD with 5.4 (Sep 10, 2022, build 4287) appears to work fine for [thb0seapress-avg10.1:---]
If you want to roll back then, on System Administration tab, top most Maintenance box click on the drop down arrow beside Version Control: and select "stick to version 5.3", then [Reboot] on bottom of page. Unit will Reboot/restart with version 5.3