[1.12.2] Thermal Foundation metals do not render a proper texture in molten form

[gassug3]

It appears that molten TF metals (enderium, iridium, signalum, invar, etc) do not render when they exist in the world as a block. Paired with a dimension-creation mod like Mystcraft, this creates vast surfaces of missing texture blocks as seen here (molten enderium).

PlusTIC version: 8.0.5
TConstruct version: 2.13.0.183 (1.12)
Mantle version: 1.3.3.55