Clash of code issues when timeout/leaving

Hi,
I notice that i was added to several clashes even if i leave them. Or sometimes on my page it shows that nobody is in the clash, but after a time i get a notification that i submitted a clash with no code.
It this affecting my score?

Thanks.

Screnshot
Look at King - he is on 4 clashes on the same time.

Which browser are you using? We’ve noticed very occasionally an issue with Firefox, I’m not sure whether your issue is related or not…

I’m using Firefox.
I will try with Chrome to see if it happens again.