Hello, I purchased the asset and am using the latest version of Gamemaker (2024) + the asset (2022+).
I've followed the Shaun Spalding tutorial to set it up and run the server, with an empty room/object as the live objects. It seems to update the room: 

$ready! 2 live files, 556 scripts, 226 macross, 15 enumss. Took 604ms

$updated r_lvl_1 (97ms) in the log

But when I add an object to the scene it just freezes.

Also I am a bit confused, how would I see the changes in my script after adjust a variable in a Step event of my player?
Thank you.

Hello, you shouldn’t be reloading the scene if you’re only changing code in an object.

As for freeze, email me a project where that happens and I’ll take a look.