When I was a MS, apparently someone told an elder that I was a homosexual - which is not true. Or maybe they said they "suspected". I don't really know. But one day the elders called me in the back and waited for the Hall to empty out. After saying they needed to discuss something very important, they said a prayer. Then they asked me if I was. I replied No I am not. They said they knew I wasn't but had to ask me anyway. Then they concluded with prayer and thanked me for taking the time to talk with them.
Of course, merely being a homosexual or having homosexual inclinations is not a sin and does not disqualify one from being an appointed servant (elder, MS or pioneer). It is acting upon those inclinations that would be a problem.