We have been using Storyline 1 for years. A couple days ago we upgraded licenses to Storyline 3. A few of our team members have been trying to open their files built in Storyline 1 in Storyline 3, and after the "do you want to upgrade this project" prompt and saying Yes, the file opens as a blank screen inside SL3 with no scenes. The backup of SL1 is there and opens in SL1 as expected. Any ideas?
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