Windows Insider build starting from 16184 are not compatible with Delphi IDE, staying locked on splash screen forever.
Yes, Windows Insider Build are Beta version(s), however Delphi is the one and only software I am aware of that bricked under those builds.
I suspect a Delphi issue, probably the protection and online activation module that is again at fault trying to protect itself.
As it is reasonable to think Microsoft is not the culprit here, and as being in Windows Insider program is sometine not an option for software vendors, Embarcadero/idera should at least investigate the issue and report - ideally provide a quick fix.
If one's answer is "don't use Windows Beta", then just don't waste the time to write it.