Extending Transition Play Times
I found out recently that you can extend the length of transitions in iMovie. However, when I try to, an error pops up, telling me, "The clips do not have enough media available to change the length of this transition."
I don't need to transitions to be any longer than 4 seconds, yet, there are more than 2 seconds of clips on either side. What else do I need to do before I can extend the transitions?
Technical specifications
iMovie Version: 10.3.1
MacBook Air 13″, macOS 12.0