The new 4.4.6.3 out today seems to have fixed problems I was having with loading m3u8 streams of my cameras, especially with Safari on the desktop. Previously,
Blue Iris's m3u8 streams on Safari would only load the first 1.ts video file and refuse to load the next 2.ts, 3.ts, etc. With this version, m3u8 streams seem to be working as intended in Safari. Occasionally, it'll still refuse to load anything past the first chunk/frame, but simply refreshing the stream fixes it.
EDIT: Never mind