My setup is as follows:
Minecraft 1.10.2
Forge 12.18.3.2297
TorchMaster 1.4.0.32
Draconic Evolution 1.10.2-2.1.1.236

Basically the issue is with the "stabilized spawner" from draconic evolution with hostile mobs only. Blazes, specifically, have been giving me an issue. When using the "draconic" (high / orange) tier spawner from draconic evolution with a hostile mob inside, the spawner will not function if within range of a mega torch. The spawner WILL work if the mob is passive, like a sheep.

I don't know if the conflict is on the part of draconic evolution or the mega torch, but the two don't seem to play together nicely for some reason.

Meh.. no, without looking into the draconic evolution code, i think i already know the issue. Minecraft Forge 1.12 got a feature that is not present in earlier versions (CheckSpawnEven#isSpawner()). Its an issue with how Torchmaster controls the mobspawning. I will see if I can work something out.

Sweet, brandon added the fix on his end, which makes it available for other mods, not just torchmaster :)
Once the next release for DE is out, the torch should just work. I'll keep this issue open until i can verified it myself.