movie files being deleted after download completion

[fkick]

PlexDownloader scans the library properly and can pull files, but once the video file download completes it's automatically deleting it, but keeping subtitle files. Plexdownloader does not report any errors, and after sleep it will attempt to download the file again.

[retnug]

Thats happens by big files, I prevent this by splitting the download . may be it helps!
while dfile < long(filesize):
range = {"Range":"bytes="+str(rangestart) + '-' + str(rangeend) }
req = urllib2.Request(link, headers=range)
epfile = urllib2.urlopen(req)
while dfile < rangeend:
if debug_limitdld:
chunk = epfile.read(buffer) #1K buffer
fp.write(chunk)
dfile=long(filesize)
else:
chunk = epfile.read(buffer)#1MB buffer
if not chunk: break
fp.write(chunk)
dfile += len(chunk)
#print "Downloaded: " + str(dfile) + "/" + str(filesize) + " Buffer: " + str(buffer) + " Chunk: " + str(len(chunk)) + " rangeend: " + str(rangeend)
epfile.close()
rangestart = dfile
rangeend = min([rangewidth+dfile,long(filesize)])