VPN (PIA) on Pfsense using tutorial not working

hi i have tried the Lawerence and Synbricks videos for pfsense to be secure so you can have novpn and vpn clients… but they dont talk about the dns resolver or about the dns leakage it causes… have you guys set it up so you can have both and no dns leakage… as i cant seem to stop dns leakage coming on the vpn side even with a kill switch… hoping someone here might know and screen shots