TyptTo in Macro, Data being truncated

Hope someone can help. I've got a Macro I need to populate a po in GP. Everything works perfect except the text I try and type into the comment section get''s cut off at some random spot. Are there any specific rules to using the "TypeTo" command?

Here's a example....

NewActiveWin dictionary 'default'  form 'POP_Comment_Entry' window 'POP_Comment_Entry' 
  MoveTo field 'Comment Text'
  TypeTo field 'Comment Text' , 'SHELL: 72" OD X 4~" X 1/2", SA-516-70N-SINGLE OUTSIDE 30 DEGREE BEVEL;-NO LAND (CIRC SEAMS); SINGLE OUTSIDE 30 DEGREE BEVEL -NO LAND, 1/8" GAP (LONG SEAM)'
  MoveTo field 'OK Button K'
  ClickHit field 'OK Button K'

So I would expect to see this in the comment window

SHELL: 72" OD X 4~" X 1/2", SA-516-70N-SINGLE OUTSIDE 30 DEGREE BEVEL;-NO LAND (CIRC SEAMS); SINGLE OUTSIDE 30 DEGREE BEVEL -NO LAND, 1/8" GAP (LONG SEAM)

but get this

SHELL: 72" OD X 4~" X 1/2", SA-516-70N-SINGLE OUTSIDE 30 DEGREE BEVEL;-NO LAND (CIRC SEAMS); SINGLE