FOSS gamedev and creative worlds

Is this supposed to be happening and does anyone know what mod is causing it? I just mined the first mesocrystal on a game map, and now the cobblestones are bursting into flame. I see no lava. They spontaneously combust near the player, and they catch one another on fire. Is it expected behavior or maybe part of a mod? Version is 0.4.13 (but I'm not asking for tech support just whether this is normal)

I recently added the following mods which I think are fairly well known here:

vessels
creative
boats
dice2
boost_cart
mesocons
throwing
moreblocks
moreores
carts
mobs
pipeworks
nether

Thanks!

Cancel the question. The flames are from a creature in one of the mod packs! Some sort of fire breathing critter.