I was on 5.8.0.6 and I had similar issues to this thread.
I also wanted to comment on "Blue Iris keeps deleting my recordings!"
"Intermittent Timeline recordings"
"BlueIris decides to delete all my videos (5.8.0.7 PSA)?"
"Drive free space is inaccurate"
as well as "Warning ! BI update 5.8.0.11...