I am running 6.49.2 on an hap ac2, and have a USB memory stick attached. From the terminal, the /disk print command works, and I see this:

[admin@MikroTik4] > /disk print
# NAME LABEL TYPE DISK FREE SIZE
0 disk1 NO NAME fat32 USB Flash Drive 37.8GiB 116.1GiB

But when I run /file print, the terminal hangs.

ftp into 192.168.88.1 works, and I can see both flash and disk1 directories.

Any ideas?