Client map is not working properly

[Poring King]

Like what i said from the title it happen that when i login to the map its only 3 players in my map but when i type /w it says the exact number of player's online . When i try to character select and use other char then it shows all the char connected in the server in prontera . How it comes this happen ? I just using 1 server  . Is this client a problem ? to be short the problem sometimes i feel like i connecting to a different map-server . but the exact player connected in map is same

See the difference 

Edited August 31, 2020 by Poring King

[Haruka Mayumi]

Do you have any source modifications that might cause this?..