Simon,
Thanks for taking the time to help me with this. I am new to Davinci…
If I understand you correctly, I have all my transitions centered on edit so 5 seconds per side between videos each video is 10 minutes long, 4 videos total and the first 2 transitions there is no problem with the length. Do I get this correctly?
I only have 1 timeline so I am not nesting anything together.
I am attaching screenshots, maybe you can see something


Thanks again
Todd