This is fixed in the latest update, I just ignore filter out the REINST and such. If I find that doesn’t solve people’s problems, then I’ll look into the Archetype Object flag.
Target Actor should be the correct field. Turn on Verbose for that task and you should get a print out of exactly what is happening. I will note that Play Particle Effect had a couple bugs in it that are fixed in the latest version (namely with the dynamic binding always returning the static particle effect referenced in the Task, and that attached Effects on Targets didn’t work correctly).