Yes, strange indeed, since the progress bar completes to 100% en then it restarts. I've tested it multiple times (also with a freshly downloaded bin file).
I also tried downgrading to an older version, but 5.73 is very persistent :D
Maybe my board is damaged somehow, since I had to remove the charging chip. I blew up the charging circuit due to reversing the polarity

I then attached a separate charging circuit but I noticed power drain when in sleep; over night it lost 30%. So after removing the damaged chip all
seems to work ok. Untill now :)