Hi Sega Chief.
Here is a bug report. I didn't read the 100+ of this thread so maybe it has already been reported.
Bug: It seems that if your Strength gets >255, then it comes back down to 0.
Facts: What happened to me is that Tifa has like 242 STR. When she hits, she does normal damages. Then if I put some materias on het that boost het STR such that it is over 255, she now hits for 1 damage.
I am playing on the steam version zith the NT mod (advanced) and the custom mod for materias.
Hope this can help.
BTW, I LOOOOVE this mod!!! It's by far the best FF7 mod I have tested so far. Thank you for all your work. Can't wait for the 1.4