Can confirm, same issue seems to be present on the Lime 2.
Updated tonight to the latest version, with Linux 4.13.16-sunxi and was unable to get it to boot without HDMI attached.
Currently working around the issue with a HDMI dummy display I had lying around.
Thanks for taking your time looking at this.
EDIT:
Can also confirm that downgrading to the u-boot from 5.31 fixes the issue here.