Minecolonies version # Update to the newest minecolonies and structurize alpha first and see if your issue might be already fixed!

Version:

Expected behavior

Lumberjack cuts tree down

Actual behaviour

I used the define area tool and noticed the lumber jack not cutting down some trees. Debugging I found out that if you put a tree on a single raise dirt block, the lumberjack ignores that tree.
I had done this to help prevent the lumberjack getting stuck when a tree grew around them, trapping them.

As soon as I put a block next to the platform block holding the tree, the lumberjack recognized it as a target.

That is on purpose tbf. Those are not recognized as trees. Put a block next to them to make it work.