"Assertion failed" with Unity 2017.2.0b8 64 bit

So recently is started working on a project which currently is a somewhat modified version of the Space Shooter provided by Unity. Because of the security issue in the editor (remote code execution) I upgraded to Unity 2017.2.0b8 64 bit. After doing so and re-importing my assets I constantly get these errors in my console:

1. Assertion failed: Assertion failed on expression: 'CompareApproximately(det, 1.0F, .005f)'
2. Assertion failed: Assertion failed on expression: 'fRoot >= Vector3f::epsilon'
3. Assertion failed: Quaternion To Matrix conversion failed because input Quaternion is invalid {-1.#IND00, -1.#IND00, -1.#IND00, -1.#IND00} l=-1.#IND00

It is caused by this peace of code which came with the project:

Code (CSharp):

1. GetComponent<Rigidbody>().rotation = Quaternion.Euler (0.0f, 0.0f, GetComponent<Rigidbody>().velocity.x * -tilt);

I described my problem further in detail here at Unity Answers http://answers.unity3d.com/questions/1396012/random-assertion-failure.html but did not get any replies. So today thank to help of a second person I found out that the errors don't occur in version 2017.1.0b9 64 bit. As I described in my Unity Answers post the errors only acure occasionally which makes me even more think that this is a bug in Unity 2017.2.0b8 64 bit. So am I missing something or is this actually a bug inside Unity? Any help is greatly appreciated.

 

Yes that bug report kinda sounds like my issue, cant wait for the new version which hopefully fixes the bug, thanks for your help!