# Problems with detailed routing violations with an array of macros

Tool: Detailed Routing

Subcategory: Routing violations

## Conversation

### oharboe
In this pull request, I've added a design that has a problem with detailed routing.  I *suspect* there are some alignment requirements for macro positioning, but I don't understand what those requirements are.

Any tips?

https://github.com/The-OpenROAD-Project/OpenROAD-flow-scripts/pull/782


![image](https://user-images.githubusercontent.com/2798822/213920736-10b8a7f8-0b71-466a-9357-178dbb9b52b7.png)


### maliberty
My first guess would be to look at the macro pins and whether they are on grid

### khaledhasanzami
Same issue, any solution reached yet?

### oharboe
We're not seeing these problems currently with latest master