Really weak force feedback on vive controls. Am I doing something wrong?

I have created a force feedback asset for my vive controllers however the only thing I can get out of them is a weak thud of the touchpad that repeats every second, I have used the client play force feedback node and set it to start on key press. I have created various force feeback assets to try and none make a difference, I am very new to this so feel I may have missed something very basic so any help would be very much appreciated.
Thanks.

I’m still looking for an answer to this issue if anyone can help?

Try the play dynamic force feedback. Intensity can be set manually or dynamicly.