I've done my editiing, but I can't make my new frames fit the old "cut" in the timeline.
What'd I do wrong. I won't die from this. It's an exploration for me.
Can I some how "paste-to-fit" into the old "cut"?
-Seems manually figuring out the individual frame durations isn't what the designers intended.(?)
You should be able to import all the jpegs as an image sequence and then render them to get an avi file.
I would do that and then bring the avi file into Vegas. This should be the same amount of time as the original sequence.
It's possible that during the batch export, some frames were dropped or corrupt. I would check the number of frames and do the math and see if it matches up.