There's a problem with CLSN defaults:
.AIR code:
; Crouching Light Punch
[Begin Action 400]
Clsn2Default: 3
Clsn2[0] = 0, -58, 24, -38
Clsn2[1] = -24, -52, 24, -32
Clsn2[2] = -28, -32, 36, 0
400,0, 0,0, 3
Clsn1: 1
Clsn1[0] = 33, -16, 67, 0
Clsn2: 3
Clsn2[0] = 0, -58, 24, -38
Clsn2[1] = -24, -52, 24, -32
Clsn2[2] = -28, -32, 51, 0
400,1, 0,0, 3
400,0, 0,0, 4
Should be displaying that first CLSN for the final frame. CLSNDefaults in MUGEN are kept on any subsequent frames as long as they are not overridden by another CLSNDefault; they are independent of one another as well.