sure, thanks for the quick response.
I tried downloading both through the regular http process in google drive
e.g. clicking download here
and I also tried using the gdown program to download the hotpot models using the command:
Both result in a file that's about 4gb and seems to download fine.
First thing i did was try using the Ubuntu GUI to just extract it to the current folder and it gave a vague 'error extracting' error.
So then I went to the command prompt and tried unzip XXXX.zip
that results in a slightly more detailed error:
'error: invalid zip file with overlapped components (possible zip bomb)'
Just to make sure something wasn't wrong on my side I booted up a windows computer in an attempt to use another extraction program, and the windows computer also says something vague like 'zip file corrupted'