Two objects constantly falling.
On every planet I visit, whenever I go into a cave, every 20 seconds or so, two objects (See screenshots) fall past. They always fall on the left of the character, extremely fast, impossible to interact with. They appear out of the ceiling and disappear through the ground. One of the objects is clearly a dust particle system, but the other one is unclear, it just looks like a black mass with pink-red spots. They don't hurt the character, but they do get very annoying after a while!
Version / Build Number:
OS: Windows 10
CPU: Intel core I7
GPU: GTX 1070