Game shifts to lower right corner post build

We haven't found any mentions of an issue like this, its very strange.

It appears correctly in unity's game window. When we build the game, it shifts the game into the lower right 1/4 of the game window, rendering it unplayable.

We are able to sometimes reproduce this by saving the project in game window mode, then closing and relaunching unity. When it reloads the project, it will be in the same format as post build in the game window. When you flip to scene and back again to game, it appears properly.

We had been previously hit by a unity bug that forced us to delete our game library and re-import.