Particles + IPO Bug in 2.4x

There seems to be a bug with the particles system in Blender 2.4x

When the particle emitter is parented to an object that has a location IPO, that object can no longer be moved manually.

I’ve posted a bug report on this, but for now the best work around seems to be:

  • Remove the particles (Either remove parenting or switch the effect off)
  • Do all your animation
  • Reinstate the particles


I had just such a problem with an animated spray-paint can. Thanks for posting the workaround.