You need to post screen shots of your setup so we can see what is going on. My guess is you have something incorrectly setup via blueprint communication or your collision settings. I suggest using print strings at each interval of operation to see what is firing and what not. For instance, setup a print string when character enters PCV so you know that it is being triggered. I use print string ALL the time to debug issues. It lets me know what is or is not happening as well as variable values that are passed along. How is the pain volume setup? it’s settings?
There is a Live Training video where someone sets up a pain causing volume just as you are trying to do. I suggest watching it.
