Problem updating V3 to newest version

Sonarr version (exact version): 3.0.3.764
Mono version (if Sonarr is not running on Windows):5.18.0.225
OS: Mac OS 10.15.5
Debug logs: Sonarr Debug: https://pastebin.com/9gv7Fwyk
Sonarr Log: https://pastebin.com/cQF2JHf7
Description of issue:

I have had no problem updating Sonarr with the internal update function in the past, but since starting version 3.0.3.764 the update fails after unpacking.

I’ve also tried to do a manual update, but Sonarr stopped working until I restored the current version from the trash!

Not sure how to upgrade at this point…

Looks like Sonarr can’t find mono in the path, so the updater fails to launch, that would also lead to it failing to re-launch after the update.

How do you start Sonarr currently?
Make sure you can run mono --version via terminal (for the user running Sonarr).

Mono seems to work fine. Running mono --version from terminal gives:

Mono JIT compiler version 6.10.0.104 (2019-12/5d03a6fe116 Wed Apr 29 20:51:09 EDT 2020)
Copyright © 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
TLS:
SIGSEGV: altstack
Notification: kqueue
Architecture: amd64
Disabled: none
Misc: softdebug
Interpreter: yes
LLVM: yes(610)
Suspend: hybrid
GC: sgen (concurrent by default)

Also, Sonarr now shows that it’s running this newest version of Mono. But the internal update still fails.