I noticed a bug in vMix 11.0.0.63 today. I hope this hasn't been previously reported here, if so I apologize for this duplicate, but I searched and could not find a report of this.

When playing an MP4 file with it's "in point" configured at 25 seconds (for example) and the playback reaches the end of the video file, vMix still says there is 25 seconds left to play. This makes it difficult to anticipate the end of the playback, since the 10-second "red timecode" feature that works for normal clips is not occurring.

Setting the out point to be before the end of the video file itself corrects this problem, but is undesirable.