Confession time ( and answer time). Well, the VPE documentation didn't emphasize this, and those that use VPE it might surrise you, but the coordinates for the right & bottom for the maxicode have to be negative. Had another developer look at it and he finally saw the difference.

I changed the code for the 3rd & 4th coordinates to be negative and all works!

Send ComMaxiCode 70 (iVOff+20) -300 -330 sStr
Hope this helps someone else in the future!