I I was making my program in CC 1.79 for MC 1.8. Now I'm playing FTB inventions which is a 1.7.10 pack with CC 1.75. The problem here is that the program get's stuck at sending messages with rednet… This works completely fine in 1.79 here's the client code (The client is the one not working)

sID, uData = rednet.receive("n4xf4xbc5f7dx85hg?y<o56")

This is one of the lines. If I change the protocol is works perfectly fine. So did something change in 1.79

EDIT: I fugured it out. In my attempt to make the protocol as random as i could I smahed arround the keyboard ans somehow managed to get an "Ä". for some reason the a became "a?" on the server and just a "?" on the client. I am guessing this worked on 1.79 since 1.76 fixed 8- bit character handling