I went to render an ~8min video and it showed it would take an hour which it shouldn't on my hardware(i3 8130u/UHD620). Watching the video after rendering explained why, there was about half an hour of black nothingness following the actual video part of the video, but there were no clips in the timeline indicating anything more than the 8min of video I wanted. I didn't have a problem before the 19.x update so I thought it might be a bug with the new version, but looking around shows no one else having the same issue I'm having thus me posting for help here. I have tried setting everything in the settings to default with no success. I feel like I'm over looking something stupid.

There could be a tiny picture on the very end of the timeline which you placed accidently. In the timeline: go to the end of you video (best with alt+arrow right) and hit "o" to set an out point. In the render dialog enable "selected zone" and render again.

Hello,
There was a bug in MLT when movit enabled (one more), JB had submitted a fix that just got merged.
So you will need to build MLT from source, or use a daily build depending if your OS is compatible...

In a new project I dragged one 40 second clip (1280x720 mp4) into the clip bin and then into the timeline like usual, then I hit alt+right arrow and it brought me to the end of the clip, I then pressed "o" and it appeared to have set an outpoint properly, I opened the render dialog window and clicked "Selected zone"(i used WebM with the default settings and 4 threads), I clicked "Render to file" and the Job Queue tab showed it would take 42 minutes to render, obviously the problem still exists. I made extra sure there were no stray clips anywhere on the timeline, only the single one I put at the beginning of the timeline.