When opening the Pie chart and pressing LShift + F3, And trying to disable it by pressing again LShift+ F3 It won't disable it. Only AND only after closing Minecraft and reopening Minecraft from the launcher, Only then it would disable it. 

I did search for this problem again, But it says it got "Resolved" but, As you can see right below, It wasn't. So it's just a reminder to fix it. Or you thought you fixed it but it's still here. 

Please resolve this, 
Thanks.