The whole catalog and your eligible pool are different sizes. Difficulty, length, pass-count, age, key mode, and style filters can narrow a large catalog substantially. .pool explains the current limits.

The bot avoids recent played/skipped rounds and entries reserved in the visible queue, then uses style fallback where available. Intentional replay votes are separate from accidental repeats.

Try Variety to broaden the source, or discuss a difficulty adjustment with the room. For an unexpected duplicate, record the room and time and report it through Discord. See selection rules.