Minecolonies version

Version: 0.10.593-RELEASE-universal

Expected behavior

• I would expect to see the miner extend teh shaft vertically and build platforms at intervals.

Actual behaviour

• Miner built spruce platform at 1st level but now is halfway through chopping it out again. I aslo noticed they had earlier removed two of the ladder blocks plus the spruce blocks behind them. These were subsequently replaced by the miner but have now been removed again.

After posting it occured to me that the miner was removing the platform in the same patern as when digging the shaft. This sugests the miner has forgotten progress when excavating.
I did also notice weird behaviour when the miner tried to mount the ladder to decend into the shaft after collecting supplies.

I am still testing this, but it takes a while to run these tests and I haven't run into the same issue yet.

closing see #4193