Brulzie

When you DL the new launcher, did you check to see which directory it would go into. Mine did an auto install to the C drive, my GTA for LSPDFR is on my D drive..... So I had to reinstall to D drive before it would work. I have two copies of GTA V installed on the same drive, but the clean copy is named GTA VCOPY. That way I can tell the difference between the two. Make sure your LSPDFR GTA V is up to date, if not there will be a mismatch. Do a verify integrity and it should give you the chance to redownload the correct launcher after the game has been updated. Hope this helps.

And all is well with the world again. Thanks Jam, perfect workaround, much appreciated.