Avoiding crash in risk of rain to get the miner character
You can edit your save file to give yourself access to the Miner: https://riskofrain.wikia.com/wiki/Save_values
While the community tends to look down on save editing for the sake of cheating, I don't think anyone would fault you for having completed the requirements to unlock a character multiple times but having the game crash on you each time.
(Unfortunately, Risk of Rain is a very buggy game. It was the dev's first commercial game, and while they did a lot of things right, one of the things they struggled with was getting all of the bugs out.)