HappyTrails-1.18.1-1.39.0.9a.jar

Issue:
Any changes to inventory will get the faster faster advancement and either shovel will get the down the path advancement.

Solution:
In the advancements folder, the faster_faster.json and down_the_path.json the items should be put in square brackets and "item" to "items":

Before:

After:

Thanks! I'll give this a look. I think it's fixed in 1.19.X

I'm on fabric now and its still not fixed. 😂