Life Cycle - Rival Events 3.2.4-unoffical.1-berryblonde
The original mod can be found
here, I got premission to make an unofficial fix and post it from the author through DMs until they have the time to look into it themselves and publish an official fix.
Changes: Fixes the issue that during NPC weddings, instead of the custom wedding arch and flowers, 1.5 craftables would appear in the town square.
It's not a perfect fix, but i made it to the best of my abilities and it works for me. Feel free to contact me if you're running into any issues with this!