Hi
After placing a blueprint with landfill, blue Constructron will approach the construction site and then deadlock.
v1.0.6 completely ignores tiles and will not try to path into water, v1.0.7 (unreleased) ignores landfill.
Constructron will deadlock when requesting items that are in a separate logistics network from the one it is currently in.
At this time there is no support for multiple logistics networks. Whilst this should be supported in the future, maybe you are over complicating the situation?
After performing a job, a blue Constructron will sometimes return to the service station with excess materials in its inventory. I would expect it to trash these materials and become grey, but instead it simply stands near the service station and deadlocks.
It does this already with the clear_items function. Could you tell me more about this situation?