Double Tool Bars
My current build of Adobe Illustrator is displaying two toolbars, side by side, one minimized and one expanded. I'm assuming this is a bug. I reset the essentials tool bar and re-installed illustrator but the problem persists. See the left side of the attached screenshot
There are multiple ways to resolve this
1. Reset workspace Essentials
2. Dragout the extra toolbar from dock and then close it
3. Reset preference (not recommended unless necessary)
4. Please get in touch with us at any of the other support channels – https://helpx.adobe.com/support.html .
Check 'Window > Toolbars > Manage toolbars'.
If you have nothing listed in opened window, than it's a bug. Otherwise delete extra toolbar.