My upload settings are :-

Start Upload Slots: 4
Max Upload Slots: 5

Yet, as I write, I am looking at SIX people uploading form my PC.

Am I just not understanding the (overly) complicated upload settings or is this a bug?

I noticed this under 2.8.5 and again under 2.8.6, but can't vouch for earlier versions.

Click here for proof.

Cheers
Vaz