Other devices on i2c bus give incorrect data

When I run `begin()`  before setup of any other i2c devices, if `begin()` returns true, all other devices fail to init, and if I init the other devices before the gps `begin()` and it returns true, they all give inaccurate values, either way the gps works correctly though. `begin()` seems to be doing something to the bus, but I can't figure out what it is.