It happened again. get_local_copy() worked as expected, but then when I tried:
.get_mutable_local_copy(local_data_path, overwrite=True, raise_on_error=False)contents of evry 'data' folder on the share were deleted and the same error was displayed.

Are datasets of size 90GB considered HyperDatasets?

No, the samll test dataset has only 32MB. I created the dataset by using Dataset.create(...) datasset.add_files(...) and then dataset.finalize() . I unfortunately dont have s3. I poked around in the saved data on the share and it seems that for some reaseon folders 'data' to 'data_11' have their contents deleted. Whats even weirder is that they were deleted right at the time when i first tried to get a mutable copy today, the other folders are untouched since monday when i created the dataset. I will remake the dataset again, but any ideas why this happened?

Hi DeliciousKoala34 , is there also an exceptionally large amount of files in that Dataset? How do you create the dataset? What happens if you use something like s3 if you have available?