T450: Partial beams do not render across the bar; rest in Group A not rendering; beams in cello not rendering

[bel28kent]

T450 uses continuous sixteenth notes that run across the bar, with the lower beam constantly breaking to show groups of three. The two beams render, but the lower beam does not break properly when the beams run across the bar. There is a rest in Group A, m. 11, that is not rendering. The beam for four notes in the cello, m. 9, are not rendering.