Looking at the log, it may be that flurry charges are queuing up. Specifically,
I120: 3 queued
I121: 3-1+3 = 5 queued
I122: 5-1 =4queue
I123: 4-1 =3queue
I124: 3-1 +3 =5queue
I125: 5-1 =4queue
I126: 4-1 +3 =6queue
I127: 6-1 =5queue
I128: 5-1 =4queue
I129: 4-1 +3=6queue
I130: 6-1 =5queue
I131: 5-1 =4queue
I132: 4-1 =3queue
I133: 3-1 =2queue
I134: 2-1 =1queue
I135: 1-1 =0queue
I136: Flurry fades
I148: 3 queued
I150: 3-1 +3= 5 queued
I151: 5-1 = 4 queued
I152: 4-1 +3= 6 queued
I153: 6-1 +3= 8 queued
I154: 8-1 = 7 queued
I155: 7-1 = 6 queued
I156: 6-1 +3= 8 queued
I157: 8-1 = 7 queued
I158: 7-1 = 6 queued
I159: 6-1 = 5 queued
I160: 5-1 +3= 7 queued
I162: 7-1 = 6 queued
I163: 6-1 = 5 queued
I164: 5-1 = 4 queued
I165: 4-1 = 3 queued
I166: 3-1 = 2 queued
I167: 2-1 = 1 queued
I168: Fades
Nope doesnt work
but its kinda close