Welcome!

A problem I see with the bot is that it's a bit late moving when the game starts, and so legit players are already moving towards the portals. They tend to close the doors to stop the shifters and such from reaching the void night. This is a problem because the bot relies on the doors being open...

Yeah. There's Granite (500g), Granite (2kg) and Granite (5kg)

Nope, just granite

For me, it doesn't drop the inventory, currently mining granite in the Quarry south of Bedabin camp. The bot stops itself after reaching a full inventory.