RouterOS 5.4 board 433uah, i cant see ups via usb.

Hi dudes,
i have problem with RB433UAH. I upgrade routerOS 5.3 to 5.4 version (with ups-5.4-mipsbe.npk), when I set ups usb port is not available. Just serial. With 5.3 version worked great. Any ideas?
TY for reply