Versions

Betweenlands version:

3.4.9

Forge version:

14.23.5.2838

Singleplayer or Multiplayer:

Both.
Vanilla Server.

Installed mods:

BloodMagic: 2.4.1-103
GuideAPI: 2.1.8-63
Just Enough Items 4.15.0.287
The Betweenlands 3.4.9

Description of the problem

BloodMagic's Lava Crystals are infinte fuel that drain LP from a player's network instead of the item. They are used in place of coal, sulfur, ..
Placing a Lava Crystal into Sulfur Furnaces consumes them, burning for one item.
Same thing for Vanilla Lava Buckets. They are consumed and don't return an empty bucket.

BloodMagic devs pointed the problem out here: WayofTime/BloodMagic#1623 (comment)

How to reproduce:

1. Place a Blood Altar and use a Sacrificial Dagger to fill it with Blood.
2. Right click a Weak Blood Orb and place it onto the Altar.
3. Get a Lava Crystal and right click it
4. Place it in a Sulfur Furnace as fuel and smelt something

Expected result:

The Items being smelt using LP from the network, Lava Crystal stays in fuel slot.

Actual result:

Lava Crystal is consumed, not draining any LP and smelting a single item.