To disable the cache option for downloading Snaps. Please add the below property in node properties.
jcc.jvm_options = -DDISABLE_SNAP_CACHE_DELETE=True
To Add this Property, please go to
Manager -> Shared Project -> Snaplex -> Click on the Snaplex name -> Go to Node Properties Tab -> Add to Global Properties section.
Note : Please seek the advice of support team before performing this change.