incorrect auto bar and auto beaming ?

[Rob Canning]

hello,

i have a score which specifies:

\time 4/4 {tomfl16-> toml16 tomml16 tommh16 tomh4.:32\laissezVibrer r8 
tomfl16 toml8:16 tomml16 tomh16 tommh8 tomfl16  toml8 tommh8 tomml16 
tomh16 r4 tomfl16-> toml16 tommh16 tomh16 tomml4.:32\laissezVibrer r8 
tomfl16 toml8:16 tomh16 tomml16 tommh8 tomfl16  toml8 tomh8 tommh16
etc.

full score here:
http://pastebin.com/m59cc4b7e

without any barlines defined

seems things dont add up right...

bars 1 and 14 should have same beaming and beats but here bar 14 is 
short a 16th note at the end and the first four 16th notes are grouped 
in two pairs rather than together.

any idea what i am doing wrong? (score is generated algrithmicaly so i 
cant tweek it to correct it)

thanks

rob