mlplayer can't load file?

Trying to use mlplayer to watch back files recently, and I get the following error consistently:

Reference to non-existent field 'Stimuli'.

Error in mlmat/read (line 48)
            val = a.(name);

Error in mlexportstim (line 23)
Stimuli = fid.read('Stimuli');

Error in mlplayer/load_data (line 674)
                mlexportstim(tempdir,datafile);

Error in mlplayer/UIcallback (line 908)
                    load_data();

Happens whether I call mlplayer() and use the GUI to navigate or call mlplayer(path). At first I got problems with MLConfig not being defined, and this error seemingly occurs in a similar state (MLConfig still isn't defined, but this causes an error first). Using latest version of MonkeyLogic.

Please overwrite your mlmat.m with the attached file.

same issue unfortunately. Tried mlplayer([Path to file]) and got the following:

K>> mlplayer('File')
Error using cd
Cannot CD to  (Name is nonexistent or not a directory).

Error in mlplayer/load_data (line 722)
        [p,n,e] = fileparts(datafile); cd(p); set(gcf,'name',['MonkeyLogic Player: ' n e]);

Error in mlplayer (line 76)
            load_data(datafile);

They are not the same issue. The previous issue was that mlmat did not return a blank for non-existing variables. The second error is because the filepath is not a full path.

I cannot rebuild the packages now, but, as a temporary solution, you can provide a full filepath to mlplayer or run it without an input argument (i.e, just type "mlplayer") and choose a file in the resulting file selection dialog.

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The download packages are updated.