4.X.3.2 "A PlaybackSpeed element may present" -> "may be present".
4.X.3.2 Numbered item 2 is described as applying to "each representation delivered in low-latency mode" but is contradicted by numbered item 3 which allows for short segments with conflicting constraints. Point 2 should be scoped to "each representation delivered with chunked segments" or similar and constraints that apply both to that case and for short segments (point 3) should be separated out.
4.X.3.2 "A PlaybackSpeed element may present" -> "may be present".
4.X.3.2 Numbered item 2 is described as applying to "each representation delivered in low-latency mode" but is contradicted by numbered item 3 which allows for short segments with conflicting constraints. Point 2 should be scoped to "each representation delivered with chunked segments" or similar and constraints that apply both to that case and for short segments (point 3) should be separated out.