I also submitted this exact bug back in April this year.
T198216 was the ticket.
I have heard nothing further and my ticket seems to have disappeared without any resolution?
Please light a fire under this. It has been 5 months of a completely broken HDR system on Xbox.
Last I heard BI asked me to submit a video of the issue, which I did but there has been no further news.
Obviously, with this ticket here you can see that it isn't an isolated incident.
Can Auto HDR being completely broken not be a major concern?
With Badlands just around the corner, please, please fix this.