issues trying to change pickup server - mdp go



so i've been trying to use another pickup server, replacing the one i had previously.

I have changed all the details round in the config file, on mailwizz. but for some reason it keeps sending to the old pickup server, even though i've disabled it and the server IP is totally different in the config file.

almost feels like a caching issue.

also when i try delete the old disabled pickup server in MW i get this error;

Error 500: CDbCommand failed to execute the SQL statement: SQLSTATE[HY000]: General error: 1205 Lock wait timeout exceeded; try restarting transaction

seem to have solved this by killing the PID's and retesting from scratch, not sure how this will affect multiple servers though :S