When you go into a dimensional door and fall out of the world and end up in void it it suppose to revert parts of your World back ?
This is not the first time it has happened to me.
After coming out of the void I come back to notice my bases(home) have been reverted. One village I was in had a Battle Tower appear in the middle of it, destroying homes and placing stone/ ores back over where I had many chest full of Items.
As you see this was the first time it happened. The Fortress I took over and made my base got wiped out and looks as if a rectangle area reverted back the land before the mod loaded the fortress. And Yes I spawned in Pick axe to recover what items I had left. Lost all in my basement too.