Do you mean when you pase in the chanel its changes, or just regular pasting? If its in the channel, you could have a script that is running that is repleacing regular question marks, and making them all into the ¿ character. If it is infact when its in the channel, try tping /remote off, then pasting. If that solves your problem you may want to look inremotes for the line "on *:INPUT:#:", or something close to it. That could be altering your output.