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The placing error message is: drill cannot mine this resource.
If i try to place the mining drill one block upwards or one block to the left the error message is: drill not above resource.
If i try to place the mining drill one block downwards or one block to the right it gets placed.
Similar behaviour with the coal consuming drill.
This is not the only place where it happens, it happens at many places where the mining drill is tried to be placed "near" a resource.