Christian liberty should be governed by the principles of a clear conscience. Christian liberty should be governed by the principle of not stumbling. Christian liberty should be governed by the principle of peace and edification. When in doubt, don't.
Christians disagree in the area of scruples, matters that are morally neutral in themselves.
If there is a doctrinal or moral problem, the church leaders must deal with it. It is important to have unity, but there will not be uniformity. No, nor are Christians to judge or despise one another in these areas. Christians are to properly use their Christian liberty in this area. The Christian has liberty, but if he has a guilty conscience about doing something, then it becomes sin.