I actually just found the solution!
It seems like it may be an issue with handling 4k resolution monitors?
This forum post (alongside selecting "Try or Install (safe graphics)" mode, fixed my issue!
It seems that forcing boot through a 1080p monitor was the fix. Still quite a pain to be honest, but it worked, so I'm content.
Thanks for the reply! Hopefully this helps anyone else experiencing the issue,
Cheers