2xtm 1637 at the same time,diferent data

hello I am trying to get 2xTM 1637 working on an Arduino pro micro  or an Arduino nano. I can't get them to work at the same time with different data. I can do it if they show the same information. I've tried different pins (not all combinations) and I can't get it to work. I have also tried connecting each display to a different Arduino. It hasn't been possible either. Only work one or other. I don't know what dont work  me. the idea is to make a display with two TM 1637 and some leds, all goes well until i try to connect the second TM 1637. a little help would be great Thank you