Hi @kai_nguyenhuu, sorry for the delay to answer you here.
So what about "P123456" :-? is this string ?
Yes, this should do on 0.13. It is a string, not a digit/number.
I've spent some time today to fix the issue you mentioned in the first place (
"Uncaught RuntimeError: memory access out of bounds"). It turns out the problem was using the C#
dynamic keyword. This keyword is not supported on Unity WebGL builds.
You can download the latest version (0.14.0-alpha.2) here https://github.com/colyseus/colyseus-unity3d/releases