@romit In BAS 0, this is not a tab, but as it were, the initial page of the browser and it cannot be closed, only the following can be.
If 0 close it, then the stream itself closes as it were :)
The browser seems to be closed.
You don't have enough proxies in the file most likely.
Maybe the Run number is set to more than one when there is only 10 proxies.
It is hard to say without seeing the script
