Grumpy_Mike:
Ceramic capacitors are EXACTLY the sort of capacitors you need. Nobody should say any other type.
Yes i know, but as i said i used 0.01uF instead of 0.1uF so i guess i need to change all 43 capacitors 
CrossRoads:
So you're wired up like this? With multiple chips where I show one shift register?
Exactly, but i have buffer chips on SER (data), RCK (latch) and SRCK (clock) every 12 TPIC6B595 chips, not between every chip.
Right now it stops working properly even whith 2 chips so my guess is there is an issue with the lenght of the wires.