We have ll 9.71 and we have multiple external storage and we have to rules:
"size of file in bytes is greater then '0' goes to storage X
"Default" goes to storage 1
we also run an application that was based on the LLtreeview sample and last night we uplaod 20GB of data and everything went to the "storage 1". So it looks like when a document is added thru web services, it create an object of size 0 byte then upload the files so the file is sent to the "default" provider. The rule "..greater then 0 byte" is bypass.
Is somebody can confirm my assumption about o byte size creation?