My Home Assistant Rpi4 boots from a SATA SSD connected on the lower usb3. I wanted a keyboard connection and the other ports were occupied by Z-wave and Zigbee dongles and a UPS connection. I removed my UPS, and connected the hub. Right away I started seeing errors on the screen - the pi could no longer access the bootable SSD and nothing worked anymore. Actually, first time I did it with the PI powered down and it couldn’t boot anymore. Probably the USB ports get renumbered once the hub gets connected. I thought I messed up my HA for good, but it recovered nicely once the hub was removed.
Any idea how can I add more USB ports without killing the setup? Thanks.