Steps to reproduce:

1. Have fortune 3 shovel, should have 100% flint droprate on gravel
2. mine gravel

Expected outcome:
Without this utility installed, flint drops from the gravel every time

Actual outcome:
With this utility installed, gravel always only drops gravel

Fix:
Either have an alternate way of obtaining flint, or restore flint dropping from gravel.

Tested on Minecraft 1.15 release.

This bug was fixed as of 2.0.2a. Make sure you're running the latest version of Datapack Utils.
If you are definitely running the latest version and the bug persists, let me know and I'll reopen the issue.