Thanks for your replies.
I have made 5 highlight videos in the past week of different youth soccer games ranging from 2-6 minutes long. No issues exporting. Made another video last night, 5.5 min long . It errors out at the 3:17-3:20 mark when I go to export. I've tried 20 times give or take. Error message says "Error uploading video. There was an error reading media in your project. Please check out FAQ's at forums.luma-touch.com or contact firstname.lastname@example.org
I went to the FAQ section and did the following.
2 week old iPad Pro 10.5 inch with latest update (11.2.5). 256gig, plenty of space left.
Turned off the iPad and turned it back on with all other apps closed.
Deleted the clips from around 3:15-3:25 and then tried to export
Tried various resolution, frame rate, and video quality settings
A few clips were slowed down and zoom was applied, made them regular speed again. Previous videos that were exported had a lot more slow motion clips, no issue.
I e-mailed support, no response yet.
Thanks for any guidance.