lost FFB on T500RS

I have a number of Rfactor installs on my PC, typically a lite install each for my various mods. Two particular mods IZOD and GT3 I have experienced complete loss of FFB on my T500RS, If I switch to another mod like NAGT, SSS2012 or even RF2 Meganes all is fine. Any ideas?

Thanks

 

TRY USING THE RESET FFB u can set it up in controllers. but this FORUM is more for RF2 than RF1

 

It's a thing that pops up from time to time on some mods, as has been recommended mapping reset FFB solves it.