Gutenberg button visible

After the last update suddenly a Gutenberg button appeared above the editor. I found out that it is related to the WPBakery page builder plugin. However, I didn’t update that plugin for quite a while and the button appeared after the update of Classic Editor.

I first reported this issue on the support forum of the ‘Classic Editor Addon’ plugin, but it seems to be related to the ‘Classic Editor’ plugin instead. For information, please visit https://ww.wp.xz.cn/support/topic/gutenberg-button-visible/