It seems that the problem persists, 
I can only compute MeM sources using right click but no using Process Tab
Thanks in advance!
** Error: [process_inverse_2018] Sources > Compute sources [2018]
** Line 60: Undefined function 'be_main_call' for input arguments of type 'struct'.
**
** Call stack:
** >be_main.m at 60
** >process_inverse_2018.m>Compute at 679
** >process_inverse_2018.m>Run at 93
** >process_inverse_2018.m at 24
** >bst_process.m>Run at 230
** >bst_process.m at 37
** >panel_process1.m>RunProcess at 124
** >panel_process1.m at 26
** >gui_brainstorm.m>CreateWindow/ProcessRun_Callback at 781
** >bst_call.m at 28
** >gui_brainstorm.m>@(h,ev)bst_call(@ProcessRun_Callback) at 305
**
**
** File: Andrew/PAROX/data_PAROX_trial004.mat
**