I can not change the order of the channels in the list. Is the receiver faulty?

If LCN is enabled in the receiver, then the channel order established by the multiplex operator is used.

To change the order of these channels, turn off the LCN function, search for channels again, and then set them up according to your preferences.

The LCN (Logical Channel Number) function is used to transmit in the multiplex signal the numbering contained in this channel multiplex. This way, after searching for channels, they will be arranged according to the order set by the sender in advance.