Rockstar Launcher error 134 with Heroic Games Launcher - eviltoast

I was trying to play the epic games store version of GTA V with Heroic Games Launcher, but after a launcher update today, when i try to launch it, it fails with the error “The rockstar games services are unavailable and offline play could not be verified (code 134)” (at the moment of posting this, the rockstar web services are up and running)