I have wazapp 0.9.20.0 nigthly24 version...i didnt try the new verisons yet because this one works perfect...as they say..."IF ITS NOT BROKEN DON'T FIX IT"

anyway i never had problems sending 1mb images until yesterday,,when it started sayng "retry" after having loaded it.

I fixed the probl, just doing a manual resize with the N9 image editor settings
I reduced the pic at about 25%, more or less 50kb weight and it worked
wazzapp sent it perfectly

I honestly don't know why it started behaving like this...but i'm curious....for sure must be some restriciotns made by whatsapp servers.
cheers and long life to the N9 and to the good people like coderus that supports this device