Unknown error when using h5write

I am trying to save data as HDF5 datasets and keep encountering this long error message when attempting to using h5write:

Warning: The following error was caught while executing 'H5ML.id' class destructor:
Error using hdf5lib2
The HDF5 library encountered an error and produced the following stack trace information:

    H5FD_sec2_truncate              unable to extend file properly
    H5FD_truncate                   driver truncate request failed
    H5F_dest                        low level truncate failed
    H5F_try_close                   problems closing file
    H5O_close                       problem attempting file close
    H5D_close                       unable to release object header
    H5I_dec_app_ref                 can't decrement ID ref count
    H5I_dec_app_ref_always_close    can't decrement ID ref count
    H5Dclose                        can't decrement count on dataset ID

Error in H5ML.id/close (line 47)
                H5ML.hdf5lib2(obj.callback, obj.identifier);

Error in H5ML.id/delete (line 36)
        obj.close();

Error in h5write (line 46)
if nargin > 0

Error in HDFDataBase (line 28)
    h5write('myh5file.h5',[dsname '_AR'],ar) 
> In h5write (line 46)
  In HDFDataBase (line 28) 
  

I have no idea what I am doing wrong as it seems to work for some datasets, but not for others. This is what I am attempting to run:

path = 'D:\Exp1\group1\test1\';
d = dir([path '*.mat']);

for ii = 1:numel(d)
       
    dsname = ['/Exp1/group1/test1/' d(ii).name(1:end-4)];
   
    h5create('myh5file.h5',[dsname '_AR'],[200 43200])
    h5create('myh5file.h5',[dsname '_RAW'],[800 43200])
    h5create('myh5file.h5',[dsname '_ACCVAR'],[1 43200])
    
    data = load([path d(ii).name]);

    ar = [];
    eeg = [];
    acc = [];
    for jj = 1:numel(data)   
       ar = horzcat(ar,data(jj).ARDATA);
       raw = horzcat(raw,data(jj).RAWDATA);
       acc = horzcat(acc,data(jj).ACCVAR);
    end
    
    % ar = 200x43200 double
    % raw = 800x43200 double
    % acc = 1x43200 double
    
    h5write('myh5file.h5',[dsname '_AR'],ar)
    h5write('myh5file.h5',[dsname '_EEG'],raw)
    h5write('myh5file.h5',[dsname '_ACCVAR'],acc)
    
end
  

Any help would be greatly appreciated, thanks

[Rashed Mohammed]

Hi Jack,

Can you share which MATLAB release and OS you are using? It would be helpful if you can share the files causing the issue so that we can reproduce it. Also, try the workaround mentioned here https://www.mathworks.com/support/bugreports/2414231 to see if it fixes the issue.