The taiko-slider is not included in `Playfield`, so it doesn't get hidden when calling `drawableRuleSet.Playfield.Hide()`. Calling `drawableRuleSet.Hide()` hides the taiko-slider, in addition to the rest of the `Playfield`.
Was spiritually removed in https://github.com/ppy/osu/pull/16045.
This implementation is mostly taken from that PR's comment thread
verbatim, and now works due to the associated changes to
`OnlinePlayBeatmapAvailabilityTracker`.
Adter an import of a modified version of a beatmap (that was already
present in the local database), it's feasible that one of these trackers
would not see the state change due to the nuances of the import process.