Shift clicking blaze powder into Acclimatiser destroys blaze powder

[Former user]

When shift clicking blaze powder in, if there is already a partial stack in there, instead of adding to the existing stack, the amount that would be added to the stack is destroyed instead

[Morias Sairom]

Confirmed, only left clicking and dropping manually works.

[Yan Heroux]

The same happens with water wax capsules (or they did for me)