Hello Jean,

Ok, Thank you for your sample. I can replicate the issue in here. This issue can be replicated not only using F11 but all the time when resize the browser (maximize or minimize). I will forward this issue to our developer teams and will let you know the result asap.

Regards,
Handy

Hello Jean,

I got a response from our developer teams. This issue happens only when you resize the window.
 Our WebTextEditor has its own logic mechanism to resize the toolbar. When the size is getting reduced, some of command would be hidded into "more options"dropdown button. Or, it will moved into the bottom.
In other words, your scenario messed up with our resize and hide scenario.
Is it possible for not using hide?
Such as switch the current image with your custom image. You can also override the command.
Or you can use disable command instead of hiding the command.

Regards,
Handy