How does Livesplit work with segmentes speedruns?
You have to write the time down you stopped at, then when you open up livesplit again, you go into the settings and set the “start time” to whatever it was when you stopped. This will start the timer at that time so you can continue.
Closing the application gives you an option to save your splits, but the time you paused it at won’t be saved, you have to do that part manually.
If you want to time a segmented run, I would make each segment a set of splits on its own instead. The other alternative is to just play and not worry about splitting, and then time the videos afterward to find the fastest. This strategy has the benefit of being accurate to the frame assuming you can time it appropriately.