`Drop Spot` can not upload large files while all config parameters set correctly and I can upload bigger than 4GB files with `Add documents`

When I drag n drop large files aka bigger than 4 GB files to `Drop Spot` it seems it will be uploaded correctly but when it is finished, the uploaded file does not exists in the selected folder or any other folder.
I am sure that I set all config parameters correctly because I can upload files bigger than 4GB `Add documents` icon which exists on toolbar.