Thank you for your post.
Do all Windows 10 users experience the blank screen? Or, is it just your machine?
If this is only occurring on your machine, temporarily create a new Windows 10 user, login to the new user account, launch FileMaker Pro, and open the hosted file. Does this work?
If the issue is happening on all Windows 10 machines, were all the machines configured the same way? If you get access to a new Windows 10 machine that has not yet been configured, see if you are still able to replicate the blank screen.
Keep me updated with any progress.
Corporate is rolling out Windows 10 laptops. Only about 5 users have them that I know of on Windows 10. All are set up basically the same, corporate won't let us create multiple users on the computers but I will check. I think all of the users are experiencing blank and frozen screens. (when they first start the database the screen is blank, if they figure out to resize the screen they can see the layout, but if they navigate to another screen the window doesn't update).
They see the same effect on new files and the production database.
Other apps (word & excel) work fine.
FileMaker 14 works fine on these machines.
Thank you for the additional information.
I forgot to mention in my last posting that I am unable to replicate the issue on my Windows 10 computer. I can launch any of the built-in solutions, and they all open to the appropriate screen. My Settings -> Display is set for 100%.
Since I am unable to replicate the issue, and since all of your corporate Windows 10 laptops are configured identically, see if you can get FileMaker Pro 15.0.3 installed on a machine that is yet to be configured. That is, just Windows 10 with nothing else.
If this is not possible, then consider having a Startup script that adjusts the database window to a certain size and then back to the original size.