So I was doing the One Block Challenge, when I encountered these glitched blocks:
How to reproduce the glitch:
Run this block:
The sprite should now be saying the call block.
Drag the ring out (the ring should have duplicated, and without placing it down in between, drag the ring into the ring. Now drag the glitched block and place in on the stage, and drag the first ring out again.
If it needs clarification, just ask
This glitch will also work with any other blocks with the ring thingy (idk what it is called)
I also was able to get this block: