Trying to get 100% completion, and I currently only have the Tossing Gourds challenge left. No matter how many gours I toss, or how many tries I do I can't get more than 4/5 progress. More specifically the 2nd barrel from the left just next to the patch of gourds does not register when I toss the gours into the barrel. All other registered immediately.

Is there any fix to this? I've really devoted some time to 100% completion and now this one bug stands in the way...