Active indicator on tabs with side-nav

[ezokoze]

Hi, I wish you could help me here, here is my problem :
I have a side-nav with a materialize tabs in it, but the problem is when I open my side-nav the active indicator of materialize tab take the whole length of the side-nav width.

The only way for me to get back to the original length of the activate indicator is to click on a tab and it came back to normal.

Here is the original position

After opening

After clicking on the first tab

Thank you in advance to any one who may be able to give me some ideas.

[DanielRuf]

Can you provide a simple codepen so we can reproduce and test it better?

[tomscholz]

Closed due inactivity. Feel free to reopen it, if it's still necessary.