Multiple-block mining

I am trying to get a multiple-block mining mod, sort of like TapL's chunk miner to work. Despite looking good visually, I can't seem to get it to work. Here's a screenshot to give you an idea of how I'm trying to do this. 

Minecraft UHC but you can mine MULTIPLE blocks at ONCE?

Cybersecurity firm finds hidden Monero mining malware on AWS

Working on some mining mechanics for an age based mod which will

How does blockchain work?

Tutorials/Mining – Minecraft Wiki

Consensus Mechanism in Blockchain Training Module on Blockchain

Theoretical research on reasonable shield support capacity in

PDF] Analysis and Prediction of CET4 Scores Based on Data Mining

Cryptocurrency mining affects over 500 million people. And they

What Happens When Two Blocks are Mined Simultaneously? Bitcoin

How Does Bitcoin Mining Work? - GeeksforGeeks

What does mining difficulty mean? — Bitpanda Academy