@Ron_Steckly it might be some issue with the file preview, could you please check that files are available from the code?
You can use either Python code:
import glob
import subprocess
path = '/data/workspace_files'
for filename in glob.iglob(path + '**/**', recursive=True):
print(filename)
size = subprocess.check_output(['du', '-sh', path]).split()[0].decode('utf-8')
print(f'Total size: {size}')
or IPython magic:
!ls -l /data/workspace_files
!du -sh /data/workspace_files
Please note, that you need to attach Workspace Files folder using Attached Files pane and restart the kernel before if you are working in the default (Home) workspace.