Animation problem with te skill Bones

[Climat]

I am repeating my problem because I have not had an answer.
I work with ADOBE ANIMATE 2020 and with an HTML5 CANVAS version and with characters in vector format (worked with ADOBE ILLUSTRATOR integrated into ANIMATE via copy / paste).
I try to make 2 characters walk with the "Bones" tool and via a structure of nested symbols (the main character / its different parts (legs, arms, etc.) and in each part the animation of the leg and the arms.
with copies of the arm and leg symbols for the 2nd arm / leg.
Everything works fine when I watch the animation in the software, but as soon as I watch it in the browser (Chrome or Firefox), the second left leg and the second arm of my character do not move (no animation )?
And I don't understand.

I have started over several times with different options and never managed to avoid this problem.
Could someone help me?

[n. tilcheff]

Since it's a Canvas file, have you applied Color effect to the instance, for example negative Brightness?

This can be causing the described behaviour. It's a limitation of Canvas.

You would have seen warnings in Output upon publish. Read them carefully.

[Climat]

Finally !
Bigs thanks to you.

[n. tilcheff]

Well done, mate!

I'm glad I could help.