I have successfully installed Kodi on Raspberry Pi 3, twice last year.
Recently, I have bought a RPi 3 with LibreELEC pre-installed on a SD card, from The Pi Hut.
When I have booted the RPi 3, the raspberry icon was displayed on a white background with the message "resizing FAT partition" and nothing happened.
I tried to recreate the SD card.
I have run SD Creator on Mac OS 10.11.6.
I successfully created the SD card.
When I have booted the RPi I got the same message as before.
Thanks for tour help.