I'll start with I play on PC and I don't use any mods. I started a new character for the event, a single female living in Willow Creek. I was able to do the event through the planting of the flowers ...
Ideas
Hello everyone!
I also have a similar problem, I get the letter but when I read it, it disappears and I don't complete the mission. I don't know what to do...
I had this issue on PS5 and I managed to fix it by loading a different save file, and reading the letter on there, then going back to the save I'd been originally playing the event on. I don't know if it would work on PC, but it seems the events progress is across all saves.
I hope this works for other people too.