Launcher fails after recent update (Mac)

[xer0737]

I'm running FFXIV for Mac in macOS Catalina Version 10.15.4 on a MacBook Pro (15-inch, 2018). After last night's update my launcher fails to open. I originally opened the game, it updated, and then I played for a while. After exiting the game and trying to log back in, the launcher failed and gave me the error:

Unhandled exception: page fault on write access to 0x00000000 in 64-bit code (0x00007fff729f195d).

I tried restarting, then a full shut down, that didn't work.
I tried deleting the FFXIV_BOOT.cfg file, that didn't work.
I tried completely uninstalling the game and associated files multiple times, that didn't work.
I tried updating Wine to version 5.0, that didn't work.
I tried updating Wine to version 5.5, that didn't work.