I'm using the official start text in Terminal:
java -Xmx1024M -Xms1024M -jar minecraft_server.1.16.4.jar
I tried running the forge jar, but it doesn't start the server, from the command line or finder. I don't know if you know this yet or not from the applications I'm running, but I'm on MacOS Catalina
I uploaded everything in the logs folder, just in case it helps. Also, I can't run the forge server, it says Illegal Operation
2021-01-06-1.log.gz
2021-01-06-2.log.gz
debug.log
latest.log
I can place vanilla blocks, but when I place mod blocks, it disappears. I'm using MC 1.16.4 (current). The mods are loaded, but I can't place any blocks. If it helps, I'm trying to load SecurityCraft. The block appears, but after 1 tick, it's gone. (I timed it, exactly one tick)