While you already catch BlockFromToEvent, there's no case for dragon eggs. This makes it hard to use them as a field - especially as a reward field for killing the dragon.

Strangely prevent-use doesn't prevent it, implying there is no PlayerInteractEvent fired before the BlockFromToEvent?

I tried prevent-use on the parent field and on the field itself to no effect.

And of course there is also the chance that there is a PlayerInteractEvent that's not being cancelled because of a plugin conflict. :/

re-open if persists