Program is stalling the encoding even after waiting many hours

Trying to encode many diffrent types of videos today and get them uploaded. This is the first time I have ever encountered this issue. Random stalls at random times. Videos that are hour and videos that are ten minutes. From recorded video to character animations. Every type and length is stalling. Done the cc clean and such, nothing has changed.  Still stalling. Windows 10.  Also no error comes up at any time. Nothing in records or files refering to this problem.