tranny issue, replaced module with hopes to change it.....help

What is your question?

every morning i get into my car start it and even if i was to briefly sit and warm it up the transmission hesitates to shift out of first gear and into second, however once it does it will not shift back down to first gear the remainder of the day....then the next day it does it again. shirts 2-4 effortlessly but will not go back into first...i am not even sure if this is a 4 or 5 speed because of the issue but shift lever says (4-overdrive) however a downloaded manual says these were 5-6 speeds...1993 mb 300 se...thanks in advance for any answers as I am puzzled