Versions: 1.12.2

Betweenlands version: 3.7.2

Forge version: 14.23.5.2855

Singleplayer or Multiplayer: in Singleplayer

Installed mods: mods.txt

https://yadi.sk/d/EXN0temNO33E3Q - mods

Link to full crash log

https://gist.github.com/P0kerFace228/24d18aee873436073e22898424da636b

Description of the problem: When breaking a spawn with a quick pickaxe, a crash occurs, but not always, the spawn texture will disappear for a while, but in fact it will. If you break the spawner with any other pickaxe or in the creative, then there is no crash, but the spawner will not be broken.

How to reproduce:

1. Find some of pieces of tread does spawn (for example, the tower, because with this bug it is impossible to pass).
2. Approach it with a quick pickaxe and start breaking it.
3. Then expect either a crash to occur, or the spawn texture will temporarily disappear, but the spawn itself will remain.
4. end

Expected result: I expected to see the final demise of spawn, not Voldemort before the Battle of Hogwarts.

Actual result: There is either a crash when breaking the spawn, or it remains.