Richard, thank you. I will try that. I didn't know of that post so thanks for that. I will start over and see what happens!
Good luck! I remembered one last thing that might make a difference...
It seems the HD 8 (2017) is sensitive/picky when it comes to SD cards. I originally used this Samsung EVO model of SD card with my HD 8 and experienced constant performance lag and horrible battery drain. After reading more about this issue via this Reddit post, I switched to a SanDisk SD card and now my device is much happier. Just another thing I thought of but had forgotten about that might be helpful to you.