Brave Nightly not relaunching after update

Latest nightly:
Version 1.28.17 Chromium: 91.0.4472.114 (Official Build) nightly (x86_64)

After updating today, I received the normal update prompt:
“Nearly up to date! Relaunch Brave to finish updating. Private windows won’t reopen.”

However, I’m stuck at the “Relaunch” prompt in the About Brave section of the settings menu. Clicking on “Relaunch” does not do anything. Manually closing and relaunching the Nightly build does not fix this issue.

It’s a bug, should be fixed soon.

More on this. Still…
macOS 10.15.7
Brave Nightly (just updated to) 1.28.54 64-bit.

Not relaunching and just silently crashing (2 sec main menu flash).