Matlab can't load .mat or .fits files from OneDrive

I have few data sets, say,

1. fileA.mat (< 1 GB),
2. fileB.mat (2 GB) and
3. fileC.fits (3 GB).

I can load and read all the files inside MATLAB (R2020b-academic license) without any issues. However if the files are inside the microsoft OneDrive folder that are synced to the cloud, MATLAB is giving an error when I tried to load except the fileA.mat. 'Files on Demand' in onedrive is disabled and 'Always keep the file in this device' is enabled. Also, the copied file in the onedrive is not corrupted. Below are the error messages I get when loading,

Error when using FITS (fileC.fits):

>import matlab.io.*

>fptr = fits.openDiskFile(fitsfname, 'READONLY');

Error using fitsiolib

Unable to perform requested action. Filename contains unsupported characters.

Error in matlab.io.fits.openDiskFile (line 69)

fptr = fitsiolib('open_diskfile',filename,mode);

Error when using .mat (fileB.mat):

>filename = 'withI150mA.mat';

>load(filename);

Error using load

Unable to read MAT-file D:\OneDrive - Uniwersytet xxxxxxx\withI150mA.mat. Not a binary MAT-file. Try load -ASCII

to read as text.

Thanks in advance for the solutions.

[Saravanan Sengottuvel]

Looking for suggestions/solutions from the MATLAB community.

[Christopher Stokes]

Same problem. My computer will download a file from OneDrive cloud straightaway if I double click from file explorer, but for some reason Matlab is unable to download from OneDrive in this way. It works fine on my other PC.

[Vivith]

Same problem and I really need a solution ASAP

[Frank]

Same problem here. Any solutions yet?

[Nikhil]

In the MATLAB file explorer right click on your D:OneDrive folder and select Add to Path -> Folders and Subfoloders

Then try using load function to load your mat file.

[Jan]

@Nikhil: Including folders to Matlab's path only to load MAT files is deprecated usually. Why is it the suggested solution here?

[Massimo Ciacci]

Good were the times when one drive did not exist, the world was a better place, less time was wasted on nonsense.. What is not mentioned here is how many times slower will your matlab app run from a web drive vs your local pc. The wonders of backward progress...

[Sulaymon Eshkabilov]

Have you tried to change the directory to the path where you mat files are residing, e.g.:

cd(D:\OneDrive - Uniwersytet xxxxxxx\)

[Eva]

same issue..MATLAB can't open files with OneDrive in the pathway...but I can't get rid of the OneDrive. Does anyone know how?