Previously when 'looping' exposures for a manual focus run the HFR analysis for the entire image would fresh continuously
giving you a single HFR average for the image. That stopped working some time back and turning on image history has not restored that functionality. They are not the same thing.
You have to turn the the analysis off and back on again to force it refresh for the current image which is tedious
I used to be able to just let it run while adjusting focus and getting continuous real-time feedback.
I also use auto-focus which works very well as long as the starting value is good.
I used to be able to run a a quick check on each filter to make sure each one was in the 'zone', otherwise it can pick up and old value and is so far out that auto-focus fails and you find out when you have to toss out all the subs on that filter for the run.
It used to work perfectly and I really REALLY look forward to the simple bug getting fixed.