Normal
You can configure the combination of MediaPortal and Moving-Pictures in about a zillion different ways. The only way to solve your problem is to know more about your specific setup. This is what the log files are meant for, in specific the debug-verbosity log files. So please check the wiki/manual on how to generate debug enabled log files that capture your issue. If you just enable debug mode and start/stop MediaPortal, then it will still be impossible to help you. So enable debug mode, launch MePo, open MovPic, browse to a movie showcasing the problem and then close MePo and attach *ALL* the log files in a zip file to this thread.