Thanks Sidd and Steve
Yes I did that from the Adobe help screen through a Microsoft link. That has not seemed to help. My media player will play the file, but Elements 2021 will not import it. The drone is a recent upgrade for me. I did one flight shooting some footage in the Normal, HLG and D-Log, the latter two being 10 bit files H.265. These supposedly offer more dynamic range, but require more in post to see the results.
Since my original post I've spent considerable time with Adobe support. They were very knowledgeable about potential issues. We confirmed the necessary file extension HEIF and HEVC are on my computer and my system is adequate to handle the files. I did update my Nvidia driver as a result, however none of the suggestions or input helped. They also as a last input suggested Handbrake, a third party software as an option. I did download Handbrake and run the file through it which worked. But I am not familiar with it enough to determine if I have reduced the quality of the footage, which defeats the purpose. I've decided to shoot more footage when I can and try again.
Here is the file in question.
https://vimeo.com/580329847