You must using the tiar/HW/OLED128x64nice object, my older objects weren't very nice and would not work with other I2C devices attached 
I hope the "nice" one will behave well with your devices attached.
Did you created/coded driver objects for your devices ?
The axoloti GPIOs are set with internal pull up resistors, with the displays i use, it seems to be enough.
Some breakouts have pullup resistors already in place, maybe it is the case with the ones you bought.
I would say, try without resistors and if you have troubles add 4k7 pull up resistors.