Weird visual effects since the update

I’ve been seeing these things all over the place since the patch. They look kinda like the visual effect after a Mininuke, or part of the effect from a Behemoth evolution maybe, except they appear anywhere randomly on a map since the update, from the start of the match. I see them in Hunt mode sometimes but I see them all over the place on Defend. It’s kinda like those bluish electrical/smoke/explosion fields that appear kinda randomly near where the generator explodes.