My 2018 1100 on the initial start of the day will sometimes start, sputter and die. Then repeat the process until I'm ready to put drive a wooden stake through the ECU - which is clearly possessed by demons. My bike has just 2000 miles (3500Km) and the frequency of occurrence has reduced as the miles increase. That said, it does happen and my "fix" is to turn the key on, wait for all the whirring and whistling to end, twist the throttle wide open and let it snap back closed. Then (hands off the throttle) press the starter button . It lights right off and stays running at a proper RPM level and, same as for you, is good for the rest of the day.
I don't know of a rational explanation for that procedure to work -- maybe the real trick is keeping my hand off the throttle I'm inclined to try to try to use the throttle to feed it fuel while it's sputtering and EFI systems don't have accelerator pumps. Anyway, it doesn't cost anything and might be worth a try.