Why is this an Infinite Loop?

So I’m running into infinite loops on the second version but the first runs just fine. Any ideas why? The third picture is the random block generator it runs to. I’ve tried a sequencer and the variable it is setting is public. There are no other blueprints talking to it.

The third line has the wrong function. You’re calling “Row” instead of “Block”

-_- Idk how I didn’t see that… Thank you.

No problem! I’ve done that several times myself.