where do i download?
I'm working on some fixes for the next testing version, once it's ready I'll send you a private message with the download.
It isn't about add-on mac-compatibility, it's the fact that some change in the engine's compatibility with the OS made it so Blockland is unable to generate folders. The reason all I get is water is that noise.cs uses fileobjects for randomizing.
FileObjects aren't used for randomizing, but they are used when setting up default settings, which is probably where the issue lies. One thing we can try is setting up the server script objects manually, and seeing if that works.
I attached a script file to this message that includes the script objects the server uses. If you want, try installing it to your Blockland/Config folder and start the game with the default colorset. Then, once you've spawn on your server, type and enter
exec("config/scriptobjects.cs");$PTG_init = true; into the console. After that, Don't hit the Apply and Start button, use the Resume button in the bottom right of the GUIs instead. That should load terrain normally; the colors might be slightly off, but if that works then I'll know exactly what's going on and how to resolve it.