I recentlly reinstalled PowerDirector 17 on my desktop PC following a hard disk crash and replacement. Inadvertently I then downloaded a trial version of PowerDirector 18 which I understand will revert back to 17 in 30 days.
In the meantime, I was trying to put together a video shot with several sources: Mavic Mini Drone, my wife's iPhone 8, and my iPhone 11 Pro Max which is controlled by a DJI Osmo Mobile 3 gimbal. The latter shoots video in 4K at 30 fps and saves in an MP4 format.
When I try to open the MP4 files I get the following message: Your version of PowerDirector doesn't support this feature. Why would it be supported in 17 but not 18??
How do I get rid of 18 and go back to 17?
Thanks in advance for your guidance.