None of the particle effects show up in cinematics

Hey all,
This is probably a quick fix but I am super lost.
I have created a village environment that has dust, smoke and fire particle effects. The particle systems worked perfectly earlier but none of them show up now. I can still see the location of effects and their boxes, I can also move them around but they do not get rendered and also are not getting previewed when I go into game mode.

Please do help me out. Attached are screen shots of what I mean.