I don't want to discuss what led up to it (too painful and involved a family matter), but during book study I was not called on by the regular conductor even if mine was the only hand up. One Saturday morning, there were only three of us: the assistant conductor, a sister, and I.
The assistant conductor said the opening prayer, read the paragraphs, said the closing prayer. I was allowed to comment. I asked him, a nice but evasive brother, why I couldn't read the paragraphs. I understood not doing the prayer. He said, somewhat nervously, that he hadn't heard me read before and felt he should handle it. Never once did the elders have a talk with me to say what was going on.
Years later, in a different congregation, I was allowed to comment although a long-haired, bearded inactive member.