I am not very tech savvy, but this worked for me (so far, fingers crossed) as a fix to the Build Mode black screen freeze.
I went to my Origin Shortcut on my desktop. I right clicked and selected "Troubleshoot Compatibility. (Notice Origin, not Sims 4.) I ran the troubleshooter, then picked Test Program.
Don't press Next.
Go to Origin>My Games>Sims 4. Test to see if this fix worked. You should be able to Exit from the game, then pick Next on Troubleshooter. You will get the option to save the fix.
I will be back if this stops working 🙂.
Out of all the fixes on this page, yours was the only that genuinely worked. Thank you 🙂
