Memory is evidence, not a hard rule.
The retrieved prior route lowers costs along the south corridor. It captures what worked in a similar transfer, but it cannot know that today's central cells became restricted.
Steer the route without retraining the planner.
Predict what will happen when a remembered corridor conflicts with a new avoid region. Then compare three computed paths from the same fixed engine.
Bay A to Bay B
READY TO COMPARE
ACTIVE PATHNEW AVOID REGIONRETRIEVED SOUTH CORRIDOR
--BASELINE LENGTH
--MEMORY ROUTE RISK
--GUIDED ROUTE RISK
Explicit guidance wins a conflict.
Blocking the new avoid cells forces the fixed planner to preserve as much of the remembered corridor as possible while routing around the restriction.
Misconception
"The preferred path is automatically safe."
Preference memory is soft evidence. A current safety constraint must be checked independently.
Counterexample
A memory-only route can perfectly match prior behavior and still collide with a region that did not exist in the retrieved example.
Transfer
For a new task, ask two questions: what similar behavior should be retrieved, and what must be true in the current scene even if memory disagrees?