I have a 3D video which I am processing in compatibility mode. It has 49 20s slides followed by another 20s of text. MEP 2018 processes just the part of the video with the slides, and stops before the final text. MEP 2015 never exhibited this type of behavior. I am processing the whole video, not just a selection. It has done this twice, so it is not a fluke. A workaround might be to insert a blank slide with the final text.
Win 10, AMD Athlon II 215, 7Gb memory, on board NVIDA 9100 video processor. 1Tb main drive.