Systemd update caused some issues which should be fixed in new nightly image tomorrow. Can you test it once it's updated? Not sure if this is the cause of your issue or not, just a hunch.
Just tried today's nightly LibreELEC-H6.arm-9.80-nightly-20201014-fede07e-orangepi-lite2.img and the result is the same. First boot completes and expands the filesystem, second boot is stuck LE logo.
If this is of any help:
LibreELEC:/ # connmanctl
connmanctl> enable wifi
wifi is already enabled
connmanctl> scan wifi
Error /net/connman/technology/wifi: Not supported
Please ask for any other info I might be able to provide.