Transgo TF2 on a 904 is not shifting

As Kim pointed out a lockup trans and non-lockup converter isn't compatible. If that's the case I'm surprised you got the converter to slip onto the input shaft at all. Do not attempt to drive this anymore until you get that corrected or disastrous results may occur (if they haven't already)
Screenshot_20190421-062559_WhatsApp.jpg its looks like the same spline counts...