All After Effects versions crash after installing AE 2023 on MAC

[kseniyaa98013479]

Hello

I’ve been using 3 versions of After Effects - 2020, 2021 and 2022.
Yesterday I decided to update 2022 to 2023. It was successfully installed from creative cloud but on launch I was told that it is not compatible with my current OS.
So I have installed 2022 back.
After that non of my After effects version are launching. I get the same crash report every time.
I’ve uninstalled 2022 and 2021 and tried to reinstall 2022 many times. Unfortunately I don’t see an option in CC of installing older versions anymore.

I was not planning to update my system as I use some old plug-ins that run only on older versions.
What has happened and hot to solve this issue? It completely paralysed my work.

My current versions are:

After Effects 17.1
After Effects 22.6.4.

MacBook Pro 16 - 2019.
MacOS Catalina 10.15.1

Crash report:

Process: After Effects [2746]
Path: /Applications/Adobe After Effects 2020/Adobe After Effects 2020.app/Contents/MacOS/After Effects
Identifier: com.adobe.AfterEffects
Version: 17.1 (17.1)
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: After Effects [2746]
User ID: 501

Date/Time: 2023-03-12 12:47:22.226 +0300
OS Version: Mac OS X 10.15.1 (19B2106)
Report Version: 12
Bridge OS Version: 4.1 (17P1600)
Anonymous UUID: D7169ECC-9EB7-7F70-9C05-21AB949DC6B0

Time Awake Since Boot: 5600 seconds

System Integrity Protection: enabled

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes: 0x0000000000000001, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY

Termination Signal: Illegal instruction: 4
Termination Reason: Namespace SIGNAL, Code 0x4
Terminating Process: exc handler [2746]

Application Specific Information:
BUG IN CLIENT OF LIBPLATFORM: Trying to recursively lock an os_unfair_lock

[nishu_kush]

Hi kseniyaa98013479,

Welcome to the community and sorry for the issue.

Any version older than 22.0 won't be available to download anymore. Only the latest and one major version behind the latest version are available. Please share the full crash report so we can find the root cause.

To start, you can try resetting the preferences of After Effects. Here's how: https://community.adobe.com/t5/after-effects-discussions/faq-how-to-reset-trash-preferences-in-after...

Moving this thread from Bugs to Discussions for troubleshooting.

We're here to help.

Thanks,

Nishu