In Luke's 15-A event, he asks you to meet him outside the farm at 6PM that night. In the relationships tab, it didn't show that I had the next event available, but I waited anyway and it didn't trigger. I thought that maybe it was because I was in Winter, so I tried it in a different save during Fall, and still no heart event. I've seen all of Luke's heart/hangout events before this one as well, so I'm not sure why it doesn't even show it's available. 🤔
Here's everything I did the days that the event should have been available on:
In the first save (Cosmo, Winter 4) I saw Luke's 12 heart event, 15-A heart event and his 12 hangout event first thing in the morning after speaking to him twice. Then I went around foraging behind the farm, tended to my animals and spent most of the day producing artisan products.
In the second save (Costco, Fall 15/16) I only spoke to Luke, gifted him tomato soup and hung out with him. I saw his 15 hangout event on one of these two days, but I'm not sure which.
Here's some additional information:
Game Version: v1.2-1238
Game Platform: Steam (PC), Keyboard/Mouse
In-Game Dates: Winter 4, Fall 15/16
I hope the information I've provided helps! If anything else is needed let me know. 🙂 I've provided my current save files for each save and all of the backup files I could find from today.


