I have designed automated farms to use Observer blocks to detect growth and when that growth occurs it triggers a piston to push the grown block into a hopper and move it to a chest.

This worked fine in previous versions since BTU went public, but in the latest beta 1.2.5.15, the piston heads are treated as solid blocks when they pass across the observer block, thus creating an endless loop and breaking the device.

Please correct this behavior and revert the piston heads back to non-solid with regards to observer block detection. Thanks!