[SOLVED] Particles dont show anymore when playing (v2.47 Steam version)

Created this M2-2 flamethrower in Maya and imported it to Blender for VFX production. The particles worked for some time, but now they wont show when I play the timeline. Following this tutorial: https://www.youtube.com/watch?v=2mrsCYvMJFE . My settings:

[EDIT: I had the render to None, chanced to Halo and it worked again]