Started Specifying a Country, But After Not Using for a While, It Changes to Another Country?

Reason: If there is no request for a period of time, this sub-account will randomly jump to different countries. If you keep using it, it will keep changing within the specified country.

Solutions:

1. Switch IP before each use.

2. When using IP, add country parameter "-country-us" after the sub-account, for example: tom_1-country-us, which means the tom_1 sub-account will keep jumping within the United States.