Cant Upload Files

i had a problem that in the editor my files looks uploaded but wasnt indexing below formats on the model page.So i got removed the content and trying to reload it.After aloooong time waiting.It reaches %100 an seem uploaded in the editor but not seen in the preview mode.By the way before it reaches %100 satate, my tries to upload stuck at %25, %50 etc .There is no problem for preview images right now .I see many smilar issues in the forum, this problems very time consuming for creators.Maybe u can make an app like Torrent just drag and drop, even pause uploading etc etc. sounds good right