BYOND Version:512.1433
Operating System:Windows 10 Pro 64-bit
Web Browser:Firefox 62.0
Applies to:Dream Maker
Status: Resolved

This issue has been resolved.
Descriptive Problem Summary:

Before moving to 1433 from 1432, everything worked fine. Switching to 1433 causes a black screen.

I'm wondering if it's the visual contents visibility change causing the issue, as I do not use any dot chain/conditional dot stuff in my project.
Do you have any invisible objects with visual contents underneath them? If so, that would be the cause.
Nope. It may also be tied to the proc chain stuff actually, but I'm not 100% (I do use them, but only in a few specific places that really shou8ldn't be causing this interaction). I'll have to see if 1434 fixes it.
1434 changes nothing on the client side so far. If you shoot me source and tell me how to get to a problem spot I can take a look.
Yup, turns out it had something to do with either proc chaining, default argument values, or the init procs.

Everything's working great in 1434 (so far). Sorry for the trouble, I wish I understood exactly the cause of it better!
Lummox JR resolved issue