Try
mux_list = find_system('test2', 'LookUnderMasks', 'all', 'BlockType', 'Mux');
number_of_mux = size(mux_list);
number_of_mux = number_of_mux(1);
if number_of_mux == 0
disp('No Mux detected')
else
muxies=num2cell(zeros(number_of_mux,1)); % memory preallocation.
finalno = number_of_mux;
i = 1;
for i=1:1:number_of_mux
muxies(i,:)=mux_list(i);
mux_current = char(mux_list(i));
linehandle_current = get_param(mux_current, 'LineHandles');
signal_current = linehandle_current.Inport;
% lolcats=get_param(mux_current, 'PortConnectivity')
% lolcats=lolcats.DstBlock
% deletequery = isempty(lolcats)
deletequery = linehandle_current.Outport == -1; %%ONLY CHANGE
if deletequery == 1
delete_line(signal_current);
delete_block(mux_current);
mux_del_list{:,i}=mux_current;
else
finalno = finalno - 1;
end
end
disp([num2str(finalno), ' mux(s) of ', num2str(number_of_mux), ' were found and deleted. '])
disp(char(mux_del_list))
end
