weird shifting at certain throttle positions

[twitch02x]

Normal driving truck shifts fine
25-50% throttle is ok
50-75% sometimes the tranny does some crazy stuff like banging hard back and forth between gears like it don't know where to go, scares me lol

Wot seems OK as well

Why the funky stuff at 50-75%
Hd300 lbf5 s1l

 

[Fordtrucks]

Could be the converter locking before a shift then unlocking during a shift.. Might try re downloading your tune once to see if that helps.