flip in cadence virtuoso layout

[vashistha]

How to use flip command in cadence virtuoso layout editor. When i am using flip vertical command and then run drc it will give so many errors and offgrid errors and before flip drc is clean.

 

[dick_freebird]

I'm guessing that maybe the cell (or object) in question
may be internally off-grid and then placed off-grid, "two
wrongs make a right" style (they don't).

I always just m-F3 (move, modal options) and pick the
flip option. Not a flip-vertical command per se.

But I think the problem is more in the data, its structure,
and/or grid related settings than the command.