I’ll rerun both placement and routing now. I’ll first make a fresh placement pass, verify it’s physically clean, then clean/check for stale routing before running the router and reviewing the finished board.

Processing was stopped.

Here's a summary of what I was working on:
Identifying board setup needs

I realize I need a place prepared for this task. It seems like I'm missing the board setup size, which is essential. But then, I think density actually provides the size I need. So, I should proceed based on that. It’s interesting how sometimes I overlook what’s right in front of me, but now that I think about it, I can move forward with my plans!

You’re right to ask. The exact sequence should be: inspect current layout state → remove any stale/partial routing if present → rerun placement with explicit constraints → review placement for overlaps/off-board parts → run routing → review for remaining airwires/DRC issues.

What has gone wrong historically: one routing attempt found a solution but timed out while applying it, leaving no routed traces; one placement/routing attempt was interrupted while I was resolving setup/constraint state; and earlier placement passes were technically valid but aesthetically unsatisfactory. The safer next run is to treat placement as fresh, verify the board size and routing state first, then route only after confirming the new placement applied cleanly.