Whenever I reload a save on Waste Processing Facility, my muzzle flash, ejected casings and other particle effects don't show up for a second or two before reappearing. Enemies don't either, like the Voss boss' rockets. Does anyone else have this issue? It only seems to occur in the Waste Processing Facility so far. Other levels were unaffected.

Also, it only seems to be recently. A prior save I had at the same level didn't have the issue and particle effects appeared instantly. I'm wondering if it's some setting I messed up or some incompatibility with current Windows 10.

Essentially, I'm firing the weapon, and the gun itself lights up from the muzzle flash, but the muzzle flash itself is completely missing, as is the ejected casings or any bullet impacts.