Some guys on Facebook group had problem playing certain movies. Problem is the way how file is downloaded. Some videos are downloading from begin to start and that videos don't have problem. But some videos are downloaded in wrong order (first middle, then end, after that begging) and for that videos you need to wait to download fully complete and only after that you can play it. Qucik workaround is to use YTS releases or WEBRip releases from streaming sites like Netflix, HBO, Amazon prime etc. With this file in 80% situations you won't have problem.