Hey Niall,
Hm, sorry for your issues here. I’m curious, have you tried adding content to that “HTML Before Event Content” options field anyway, and saving the changes? If so, what did you find? If not, would you be willing to try this right now?
I ask about being “willing to try” because if this is an issue related to that option, which lives in the database, then it’s possible that saving the option could empty that option, thus deleting that HTML. In case this happens, however, I’ve gone ahead and copied that existing HTML into a Gist here for reference and backup β https://gist.github.com/momnt/34ae85255c9cd3722857
β George