When loading up "Buffet" world generation type, with "Surface" subset, and "Modified Wooded Badlands" preset, I used a bonus chest and got a wooden pickaxe and axe. After using the tools once, both of them would stop working and did not break further blocks. I made another pickaxe, ending with the same results. As it was a "Mesa" biome, there was plenty of surface minecart chests with iron, so I made an iron pickaxe, but to no avail; it too would not break blocks after the first use.
Oddly, the axe continues to kill sheep and cows, even though it won't cut down trees.