Maximum recursion limit is reached when I try to open any script

I am unable to open any Matlab scripts - if I try to open them I get a pop-up window saying "Error using open Maximum recursion limit of 500 is reached". I've tried to extend the recursion limit, but it is still reached even if I make it 1000 so I don't think that will fix the problem. My understanding of the recursion is that it will be reached if you try to call a function within a function (?), but I receive this error even if I have just started Matlab and am trying to open a script with nothing else running.

[Rik]

Did you edit any of the functions of Matlab itself?

The recursion limit will prevent crashes in a context like this:

loop(1000)
function k=loop(n)
A=rand(500,600); %increase overhead
if n==0
  k=1; %avoid infinite recursion 
else
  k=1+loop(n-1);
end

Answer 1

[Steven Lord]

Did you create an open.m file that tries to call open? What does this command show?

which -all open

/MATLAB/toolbox/matlab/general/open.m
/MATLAB/toolbox/matlab/uicomponents/uicomponents/+matlab/+ui/+container/@ContextMenu/open.m  % matlab.ui.container.ContextMenu method
open is a built-in method                                                                    % Simulink.loadsave.SLXPackageReader method
/MATLAB/toolbox/matlab/graph2d/@scribehandle/open.m                                          % scribehandle method
/MATLAB/toolbox/matlab/serial/@serial/open.m                                                 % serial method
/MATLAB/toolbox/simulink/simulink/upgradeadvisor/@UpgradeAdvisor/open.p                      % UpgradeAdvisor method
/MATLAB/toolbox/instrument/instrument/@icdevice/open.m                                       % icdevice method
/MATLAB/toolbox/shared/instrument/@instrument/open.m                                         % instrument method
/MATLAB/toolbox/sl3d/sl3d/@vrworld/open.m                                                    % vrworld method