We pushed out a quick update to patch 1.39b in regards to the pistol/rifle weapon that was causing a crash. The firing graphic will not show up but as long as your game is up to date then the crash will no longer happen.
If you are unsure you are up to date, follow the instructions below.
- Right click on "Forge Quest" and choose "Properties"
- Go to "Local Files" tab, and select the "Verify integrity of game cache..."
- Steam will check your files to make sure they are up to date, if not it will update the game.