We're not sure what the glitch is. When we send test lightning payments using Strike or Minibits they work fine. LNbits NWC connections in Primal work for Zaps as well, but this is for internal payments.
On the flip side we're almost done developing our new CyberHerd extensions.
And, if I'm not mistaken zapping works fine from zap.stream just not Primal. Maybe trying other clients like iris.to or nostrudel.ninja would be helpful in figuring out if this is more of a Primal thing or something else.