With the update to make Planet Hopper compatible with 2.1, the graphics of the hopper no longer matches its actual bounding box, it appears as a 4x5 building, as the bottom row of tile graphics seem to be repeated. Interestingly it appears to not be an exact repeat, but the old, non animated version of the silo.

Example:
https://postimg.cc/34WkKx3n

A couple more observations that seem broken:
- The circuit connection doesn't connect to the right place, instead being quite far off to the right of the entity.
- The hopper behaviour seems to let it act as a full rocket now, allowing you to launch cargo for just the cost of steel and fuel, which seems very unintentional - although it doesn't serve automatic requests.