I've had a look into this more properly, there seems to be a type-error that is occurring, I've run this from a clean browser and session and basically there is a bug (likely due to a missing field on my profile), this would explain why many users are having this exact same issue. I've placed a HAR file and full video into my support ticket, but this explains why the page does not load.
See screenshot, I suspect others here are facing the same issue.