Question How can I make Unity 2020.2.1f1 + Final IK work on my new MacBook Pro 12.6.8?

Hello,
I am making a game with Unity and Final IK. I have created a quadruped, following the example from the Final IK demo (Grounder). However, the feet of my quadruped, as well as those in the demo, appear in a very strange way. In my case, the feet are pointing upwards. I don't know how to fix it.



I've been studying the issue. When I was working with my old MacBook Pro (macOS Monterey V 12.6), I had no problems with Final IK. But now I've bought a new computer: MacBook Pro (macOS Monterey V 12.6.8). I've migrated the game I was working on from one computer to the other, and I've only had issues with Final IK. All the other assets have worked fine (TPC from Opsive worked well too).

The Unity version I've been using is 2020.2.1f1 Intel. With this version, I had no issues on the old Mac. Then I tried changing the version, and I noticed that if I use 2022.3.6f1 Silicon, Final IK works correctly. The problem is that I don't want to migrate my Unity 2020 project to 2022 because it breaks the project. But I'm explaining this in case you know how I can make Final IK work on my new Mac, which uses an Apple M1 Pro chip, while sticking with the Unity 2020 version.

I'm attaching two images for you to see how the Final IK demo looks using the Unity 2020 version, and in the other one, using the 2022 version. In both cases, with my new MacBook Pro V 12.6.8.

Final IK demo with Unity 2022.3.6f1 Silicon (works correctly)


Final IK demo withUnity 2020.2.1f1 Intel (works bad, quadruped is flying in a strange way):

Sorry for the length of the text. Thank you very much

 

Don't know much about FinalIK but I will observe that your quadruped feet appear to be precisely 90 degrees off.

There's a lot of ways a 90 degree rotation can happen, such as resetting the default (-90,0,0) rotation you get from Blender3D file imports.

Have you tried modeling an ultra-simple stripped down ankle bone and foot, give it some IK and make sure that works across from the old to the new?

Again, it's really looking like 2022 isn't really really really LTS yet, alas. :/ I would not recommend upgrading.

Is there any higher version of 2020 you can use? I'm on 2020.3.41 but I am also NOT on M / Silicon either.

 

I have the same issue, Unity 2019 on M1 MacBook Pro. The feet don't touch the ground. I haven't tried it on PC but will test that. I will also try a 2022 Unity update, although like you I understand that can be complex.