Maybe this is a bug. I don't know. But whenever I use the error block, it shows the primitive block in the message. It's quite annoying. Is there any way to fix this? [image]

I think you guys are missing the OP's point. The complaint isn't that the block throws an error, but rather that in the actual text of the error message it shows a PRIMITIVE block instead of the ERROR block. Right now, when an error happens, it's always a primitive block that you see in the messag…