[pcfens]

Since the crash happens when switching from Test to OperatorControl, and both methods use the DriverStationLCD method, I'm wondering if the bug is somewhere in the ~Gyro stack, which would explain that it happens when switching to other methods that don't contain that object.

If this is the case, it might be mitigated by making your Gyro object a member of the class rather than an object local to a particular method.