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# Custom Macro placement detailed route issue: Maze Route cannot find path of net
Tool: Detailed Routing
Subcategory: Detailed routing failure
## Conversation
### khaledhasanzami
I am using a custom macro placement script. Changing the macro position from default to any other formation causing error in detailed routing.
`[ERROR DRT-0255] Maze Route cannot find path of net (some net) in worker of routeBox (34000 75000) (41000 45000)`
Is it an algorithm error, any idea?
### vijayank88
Is automatic macro placement creating that error?
### maliberty
This is a problem in detailed routing that would require a test case to investigate. Can you provide one?
### maliberty
I don't expect this error from the router even with a bad macro placement.
### msingh9
How do you do custom macro placement?
### maliberty
It would be great to have a test case for this problem as is so we can fix it in addition to any workarounds in placement to avoid it.
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