I just noticed that I had left some code in the Ped Money script that I had used at one point while testing stuff. Theres two seperate things that got left in, one being a harmless extra relationship group check.. but the other, sets the player to be invincible lol. Pretty major thing to leave in by mistake. What makes it even worse is that its apparently been in the script since the v1.3 release. No one else said anything about it but I still should have seen that in the many times that Ive worked on it since v1.3. If this caused any grief for you, my apologies...
Anyway here is the hotfix for it as Version 1.4b, I highly recommend updating to this version.
