Some blocks can’t be broken with any of Tetra tool. For example, piston/sticky piston, glowstone, candles, etc.

If I use vanilla tool of the same type, it would break.

Forge 40.1.8, NTP 5.1.0, Tetra 4.10.1

This was never going to work with the custom tool system that was in use in versions < 1.20.x, which has now been removed + replaced with using vanilla's tool system - at the cost of various blocks being in general more harvestable.

Actually, that’s not true. I solved this problem by adding blocks that’s not harvestable into minecraft tag with tool like minecraft/mineable/axe again. You can make smth like this by default.