Saved toolbars bug

I was in Minecraft in the saved toolbars tab and I opened fullscreen, and then the tab was the default tab, without switching tabs. Attached as 2018-07-20_09.04.15.png, and 2018-07-20_09.04.36.png

 

Edit: It works on any tab now Attached as 2018-07-20_09.21.55.png