In the basic ERP processing session (https://carpentries-incubator.github.io/SDC-EEGLAB/04-processing/index.html), noted that the parameter of the electrode channel is [128 x1] when loading the edf* file (File > Import data > Using EEGLAB functions and plugins > From BIDS subject folder) which is different to the output of [1 x 128] when loading a set* file if the instructor does this way.