There is a problem setting the WebRTC ip. Everytime the "Proxy" is replaced in the middle of a script or if you are using "rotation proxy" the ip webterc is set to "default" by the first one to be used, so if you are running an application and need to switch " proxy "10 times, the first application of the proxy will be compatible WebRTC IP, but the other 9 proxy changes will" load / carry "the first Ip as WebRTC and this does not change, even using actions like" clear cache "" clean mask "nothing changes the WebRTC Ip after it is set at the beginning of the script.