Animator Controller Layer Weight field accepts "NaN" as a valid value instead of rejecting it

Unity: Mecanim Animation

Won't Fix

6.6.X

6.5.X

6.4.X

6.3.X

6.0.X

Thank you for reporting a bug to Unity. We have reviewed the issue carefully, and in this case, the team is unable to prioritize fixing this bug. There are a number of reasons we make this decision, including the impact and severity of the issue across our user and customer base, and the possibility that future plans may solve the problem in a different way, or that a workaround for the bug may be available. Today we will be closing this case. Thank you again for taking the time to report this issue, and please let us know if there is anything else that changes the impact or severity of this issue.

Steps to reproduce:
1. Create new Unity project using Universal 3D Template
2. In Project window create Animator Controller and open it Press "+" to create New Layer
3. In Layers > New Layer > click on Settings icon to to open layers settings window
4. In Weight numeric field enter "NaN"
5. Observe the numeric field

Actual results: NaN value is accepted and stored

Expected results: NaN value is rejected and reverted back to previous valid value

Reproducible with versions: 6000.0.74f1, 6000.3.16f1, 6000.4.8f1, 6000.5.0b9, 6000.6.0a5

Tested on (OS): macOS Tahoe 26.4.1

Animator Controller Layer Weight field accepts "NaN" as a valid value instead of rejecting it

Unity: Mecanim Animation

Won't Fix

Prioritise and Follow this issue

Have a workaround or additional info about this issue?

Animator Controller Layer Weight field accepts "NaN" as a valid value instead of rejecting it

Unity: Mecanim Animation

Statuses

Won't Fix

Resolution Notes

Description

Prioritise and Follow this issue

Have a workaround or additional info about this issue?