Possible bug in fitrm within subject parameter declaration?

Hello,

in building my repeated measures model for a factorial manova experiment (using matlab's manova function), there seems to be an issue when declaring a repeated measures model for the fitrm function. I have tested using the

rank

function the rank of each of the dependent variables and independent variables, and all have results in a rank of greater than 1, thus equalling the number of columns.

However, for some bizzarre reason, when I set up my table using the following code:

t=table(doe_table(1,:)',doe_table(2,:)',doe_table(3,:)',doe_table(4,:)',doe_table(5,:)',doe_table(6,:)',RF,...
    VF,QDYN,'VariableNames',...
    {'hp','N','Engine','Ncvx','Traj','Wnw','y1','y2',...
    'y3'});

...and I declare the fitrm model as:

Name='WithinDesign';
Value=table([1:nc]','VariableNames',{'SolID'}); % nc is the total number of cases/observations in the study, meaing also its the row size of t (the table)
rm = fitrm(t,'y1-y3~hp+N+Engine+Ncvx+Traj+Wnw',Name,Value);

I get the following error with fitrm:

Error using RepeatedMeasuresModel.fit (line 1347)

The between-subjects design must have full column rank.

Error in fitrm (line 77)

s = RepeatedMeasuresModel.fit(ds,model,varargin{:});

Error in manova_test_doe2 (line 32)

rm = fitrm(t,'y1-y3~hp+N+Engine+Ncvx+Traj+Wnw',Name,Value);

Perhaps I am misunderstanding the requirement or perhaps the error is poorly written- because I am fairly sure it is not an issue of column rank. I've gone the extra step to set all NaN values to something that is greater than 0 or completely removed them from the analysis, but that won't do anything as well.